This is a post I shouldn't write. My wife will kill me, considering how much time, effort and money we have invested on the UKBC path.
I was a UKBC2012 competitor and I'm a 2013 one too. Last year I worked extremely hard to take on board what the competition is about. Every new competitor does, so I'm nothing special. I just put every bit of my heart and soul into it, and really wanted the whole thing to be a positive experience. I took part. I volunteered. Afterwards I blogged about my experience, in a bid to analyse my learnings, and also help others. I spoke to some senior people amongst the WBC organisers, and wrote some stuff that was put online for others to read... helpful stuff I thought. I've become an SCAE member. I've been an active supporter.
Right now, as I'm about to take part for the second year, I'm very disallusioned with the whole thing. It feels like all the above was an exercise in optimism that failed to realise it's goal. I'm very disappointed. Truth be told, I've lied about my enjoyment of it all. I want to elaborate upon the many emails to SCAE staff that went unanswered. The misprepresentation of membership benefits that don't actually exist. The way competitors seem to be the least important variables in the whole equation. I mean, to take part in the heats I'm closing my business for a whole weekend, foregoing 4 figures of revenue, disappointing customers, and leaving staff short of shifts & wages, and in return I'm supposed to get excited about a shot glass that should be arriving in the post any day now. Seriously guys... thanks for that. I could go on.
Tsk. This feedback should go through proper channels, but all feedback so far has been met with defensive barricades. Closed ears. More broken promises. One man can't make a difference against this particular agenda.
I will take part this year despite everything (if I am allowed after this) because I am a stubborn bastard who believes in fighting for right and wrong, and speaking out to improve things.
Haggie's Coffee Lab
I use this blog to capture my thoughts and assist me in the learning process. Often I record observations, findings and ideas that I subsequently learn are incorrect (all part of the learning process). Whilst I am happy to share such thoughts with anyone reading, I also advise caution in using them as any form of tutorial. With coffee, I will always have more to learn than I have to teach - Mike Haggerton (@HaggieBarista), proprietor of @HabitatCafe
Saturday, 2 February 2013
Pre-UKBC2013 thoughts
Sunday, 18 November 2012
Flexing The Brewing Control Chart (Part 1)
Suppose you boil an egg for 30 minutes and it comes out all runny-yolked and perfect for dunking your toast soldiers. That shouldn't happen, as we know. A runny egg is 4.5 minutes (in my kitchen, anyway). Perhaps it could happen though. Perhaps the egg was boiled at very high altitude... 6000 metres... where water boils at lower temperatures. So with a different perspective we can perhaps make things work that simply shouldn't.
I'm an advocate of Controlled Brewing. Using specific weights and measures, temperatures, times etc, and (importantly) taking a reading of the coffee's concentration (TDS) and extraction yield % after brewing. Why? I guess it goes back to my previous career in business consulting & finance, where we adhered to "what gets measured gets managed". So I control the brew, steer it into the parking space... my target TDS & extraction.
What is the target though? Well, I've always supported Gold Cup standards so I aim for the middle of the Brewing Control Chart at first (with a new coffee), then tweak to make it stronger/weaker/extract more/less... adjusting according to taste. Standard stuff that I often say more people should do.
But recently I've (initially accidentally) brewed coffees that measured substantially outside Gold Cup and yet tasted so good that the memory of drinking them makes me long for a cup some weeks later.
So this raises many questions for me, such as:
What has changed recently?
Is this a peculiarity of the coffees I've been using?
Is it just my tasting/sensory skills being terrible?
Does this mean the rules of Gold Cup are somehow wrong or incomplete?
What other factors might be at play here?
I'm not a scientist. I can't analyse the coffee's chemical composition and identify possible causes for the great flavour... high levels of certain compounds, acids, oils etc.
I'm not a Q Grader with the cupping skills to pinpoint the specific olfactory and gustatory characteristics that make these coffees so great.
So all I can do is hypothesise, and hopefully test my hypotheses with a little unscientific rigour.
The first of my hypotheses is that the 'ideal' target TDS and extraction yield is not a static box as depicted on the Brewing Control Chart. TDS between 1.15 and 1.45% is not the ideal range... or rather it is only the ideal range in certain circumstances. The same applies to 18-22% extraction yield. Having ranges is ok... the box.. but the box must be flexed up or down both axes. So the ideal range may be a TDS of 1.45 to 1.65%, and extraction yield of, say, 20-24%.
These are the sort of ranges that have produced some stunning brews for me. But likewise the ideal range might also be LOWER than the Gold Cup range.
The second part of my hypothesis is that the parameter which makes this possible, which defines how far the box needs to be flexed, is brew water chemistry.
Consider this. Flexing the box already happens. The SCAA box is lower on the TDS axis than SCAE, which in turn is lower than the Nordic range.
Why might that be? We assume it is just different taste preferences in each region, but I wonder whether that assumption has ever been adequately tested. Perhaps the underlying reality is that the different water in each part of the world affects the brewing process so differently that it shifts the box... it causes people in Norway, for example, to prefer a higher TDS. If you took that Norwegian on holiday to Seatle they may find they prefer their coffee brewed to a weaker TDS.
I know I'm probably not convincing anyone with these maybes, perhapses and unproven hypotheses. I do want to support my hypotheses somehow though, so I'm currently collecting water from various parts of the UK, each with different chemical compositions. I'll use these different waters to brew coffees with various levels of TDS and extraction yield. I will attempt to gather a panel of tasters to rate each one. In this way it might be possible to identify and measure any potential correlation between water chemistry and preferred position of 'the box' (i.e. TDS and Ext%). I'm looking for specific factors beyond just TDS playing a part. The calcium hardness, the carbonate hardness (alkilinity), and the pH... along with any other ingredients such as polyphosphates.
I aim to conduct tests and post the results in the forthcoming weeks (time permitting) regardless of whether they suggest my hypotheses are right or wrong. I have no issues with being wrong. "Only through mistakes can there be discovery or progress."
Friday, 28 September 2012
Coffee Water Quality - Post 2.
Back in January I wrote my first post on this topic. Water was to me, as it is to most baristas initially, a very grey area. It is now eight months later, during which time I've tried (with a modicum of success) to gain some clarity, primarily through reading (many times!) the SCAA Water Quality Handbook. It was a complex subject for a chemistry-phobe like me to grasp, for several reasons, including:
- Words. Carbonate System, ions, buffer, hydrogen bonding, idealised icosahedral clusters(!!)
- Symbols.
- Abbreviations. NaHCO3. Na+. CaCI2. MgSO. WTF?
In addition, whilst many coffee topics have been discussed in great detail over the years in forums, blogs and articles, there seem to be very few predecessors who have written about water. Jim Schulman's Insanely Long Water FAQ is quite a seminal post, with fantastic info, but I found that again the words/symbols/abbreviations made it difficult to understand.
Now that I've gained a basic understanding, I realise that there is a need for a beginner's guide to water quality, written in a way that helps simplify some of the chemistry. A caveat here though. It is impossible to properly understand coffee water quality without learning some basic chemistry, so what I'm about to write is certainly not everything you need to know, and the simplification process requires some key information to be omitted. My aim is just to share enough info to help others make the first step, so they can then continue to learn more on their own. Also, my own understanding is still incomplete & probably inaccurate, so if anyone would like to correct anything please do so. To understand this topic more fully, please buy and read the handbook from the SCAA website.
OK, here goes.
What is water?
You've heard of H2O. The abbreviation refers to the two components of completely pure water, hydrogen and oxygen. Nothing else. So immediately many will think "hang on, hydrogen and oxygen are gases". Correct. Actually, we need to think smaller. They are atoms, or rather bunches of hydrogen and oxygen atoms. And when those bunches meet, they stop being a gas and become a liquid. Water.
But you've probably never come across pure water. It is probably the most recycled substance on the planet. The water we drink has picked up lots of other things along the way. What things? Good question. The simple answer is, things that change the flavour of your coffee. Some good things, some bad things. And those things appear in different quantities depending upon where the water came from and what has happened to it. Some water is quite pure, with very few things, other water is full of the things. And the things appear in different proportions too. So no two waters (from two different sources) are the same. Hence no two coffees will taste the same if you use different water.
Let's call these things 'solids'.
Some over-simplified definitions.
So what are these solids?? OK, a little basic chemistry. Atoms and molecules. Stay with me, now! An atom is the basic building block of EVERYTHING. Put a few atoms together and you have a molecule. So everything is made up of atoms and molecules, bunching together like magnets. That's an important concept. There are different combinations of atoms and molecules, and each different combination makes something different. For example, hydrogen and oxygen make water. Table salt is a combination of sodium and chloride. Whoah, whoah!! what are those things? It doesn't matter for now. Just think of everything in the world being make up of different structures of molecules. So salt tastes like salt because of its molecules. Chocolate tastes like chocolate because it has other molecules. etc etc. And very small changes in the molecules can have a big impact upon what something tastes of.
Great! Now we understand why things taste differently too. But let's get back to water.
Total Dissolved Solids (TDS)
So water consists of hydrogen, oxygen, and other solids. This is probably sounding familiar. Coffee people have heard of measuring water TDS, which is a basic way of expressing how pure, or unpure the water is. How many 'things' are in there. And recently in the UK some baristas have begun measuring their water TDS, and trying to use water with a particular quantity of solids... around 150ppm (parts per million) is the target, coming from the SCAA guidelines. The theory is that if you have too many solids (eg 300ppm) or two few (eg 30ppm) then the coffee will not brew correctly and will taste bad... or not taste as good as it could, anyway. (More on why this would be the case later.)
Quality-focused baristas seek to improve the water they have available to them, through different types of water treatment. But in truth few of us currently understand what kind of treatment we need. If TDS is high, we seek ways to reduce it. If TDS is low, we generally just accept it. Reverse Osmosis systems have been developed, which purify water very effectively. I have not found anyone who has published details of their RO setup... what exactly it does to the water, which solids it removes, which solids are left behind, which additional pieces of the puzzle they have incorporated etc. It remains a bit of a secret at this stage, which is a little unhelpful to the barista community, who are still trying to get their heads around TDS.
So this is about as far as baristas seem to have got in the UK.
A closer look at Total Dissolved Solids
TDS is actually a very blunt way of describing these things in our water. It is a catch-all. I wouldn't say it is meaningless... that would be going too far, as it is a helpful statistic... but two waters could have the same TDS and still be completely different. One would make an exceptional coffee, and the other would make a cup of brown swill. This is due to the different ratios of all the different solids in there.
So we need to break this down further, if we really want our water to be perfect for brewing. And the SCAA have already done that part for us.
(NB some units of measure can be used interchangeably. One mg/L - milligram per litre - is exactly the same as one ppm - part per million.)
The above chart isn't perfect but it gives us some key info. So there's the 150ppm right in the middle. I'm going to ignore odor and colour because the majority of drinking water in the UK comes via a regulated mains water supplier, and they ensure that there are no smells or colour taints. The 150ppm is broken down into:
(a) Calcium Hardness: 68ppm
(b) Alkilinity: 40ppm
(c) Sodium: 10ppm
(d) Other: 32ppm
Total = 150ppm
Item (d) is the reason the chart isn't perfect, in my view. 32ppm is quite a big unexplained number and if anyone could enlighted me as to why the SCAA have not commented on it then please feel free to comment below. I would imagine that 32ppm of other solids would affect the brewing process somehow.
What about pH?
It's all about balance. Think of a see-saw in a playground. On one side is Acidity. On the other side is Alkalinity. They are opposing forces. This is pH, and it is measured on a scale of 0-14.
- When they are evenly balanced then the water is neither predominantly acidic nor predominantly alkaline. Neutral pH is at the centre point of the scale, and measures 7.0
- If Acidity is greater (than alkalinity) then the see-saw tips in its favour. pH drops below 7.0, and the lower the pH the more acidic the water is.
- If Alkalinity is greater, pH is higher than 7.0 and the closer it is to 14 the more alkaline the water is.
So the SCAA Guideline is 7.0, right in the centre.
Acid? Alkaline? This is water, isn't it?
Don't think of it that way. As I said above, no two waters are the same. Some waters are acidic, some are alkaline. The coffee will taste different for each.
So what makes it acidic or alkaline?
It comes back to the balance of items a, b, c and d shown above.
- Calcium Hardness contributes to acidity. Infact it is not just Calcium contributing to acidity. Magnesium is another factor, and others. But Calcium plays a bit part in drinking water. (Calcium is a metal mineral that we can ingest in small quantities, like iron.)
- Alkalinity is self-evident. Several things contribute to alkalinity, including hydroxide and bicarbonate.
- Sodium also increases alkalinity.
Do the math(s)
So on one side of our see-saw we have 68ppm of acidity.
On the other side we have 50ppm of alkalinity (40+10).
But we know that the SCAA Target water has a neutral pH of 7.0, so there may be another 12ppm of alkalinity within the 'other' things in there, coming from something else. (But see note 1 below.)
How we can use this information
If you own a TDS meter, great. But how do you know what your Calcium levels are? Perhaps your Calcium is 90ppm, which is too high. You certainly don't want to add MORE calcium to your water. So we need to be able to measure the acidic Calcium Hardness part of our TDS total. We also need to know the amount of alkaline solids.
Thankfully there are ways to measure these. A simple (if not the most accurate) solution is to use test strips like the ones used by aquarium and swimming pool owners, readily available at low costs on ebay. Search for Calcium Hardness Test Strips, and also KH Test Strips... KH is an abbreviation for Carbonate Hardness, which is just another way of referring to those solids mentioned above that contribute to alkalinity.
Then we look for water treatment that fits the bill. For example, I have in the past used water with a TDS of around 90ppm, and a pH of around 6.8 i.e. slightly acidic. A Calcium Hardness test strip revealed around 60ppm of Calcium, which is close to the SCAA Guideline of 68ppm, which is good. So if I wanted to increase my TDS to 150ppm, I would NOT want to add more calcium, as that would make the water more acidic, when actually I wanted to make it LESS acidic... i.e. get closer to a pH of 7.0 by adding alkalinity. So I would need some sort of water treatment cartridge that increases hydroxide or bicarbonate by around 30-40 ppm. That's the theory. I hope that makes sense and that I haven't lost you in the words and abbreviations.
Why do these ratios of water 'things' affect coffee brewing?
Many of us think that brewing coffee is just using hot water to wash off coffee particles from the beans, but that isn't the whole picture. Remember those molecules bunching together like magnets? Well the hot water causes chemical reactions to occur. Molecules in the coffee and the water become 'lively' because of the heat, and they begin to jump from place to place, magnetising themselves to other molecules of water/coffee. This creates a variety of different structures of molecules, and as mentioned earlier in this post, different groupings of molecules create different flavours.
So the 'ingredients' i.e. the solids that are in the water, affect this process.Having too much alkaline bicarbonate, for example, makes the coffee taste flat. (See the handbook for more details on this.)
End of part 2!
As always, still much more to learn. But I hope this has helped in some small way and if I can answer questions then I will. There is a lot more info beneath this that it wasn't possible to include in this post. Maybe if there was one thing I might suggest to anyone looking for advice, it would be to find out more about the different types of water treatment on the market, and what they do to the water. Some use technology that the water handbook says is detrimental to coffee brewing! What does yours do, and what do you want it to do? This information is difficult to find out from websites, but I've found the guys at companies like 3M to be very open to discussing such things.
Notes
1. I have over-simplified the way acidic and alkaline solids balance out to achieve a pH of 7.0. There is an effect called Buffering which means that 10mg of acidity and 10mg of alkalinity do not necessarily balance out. Hence in the example above, I think (although I may be wrong!) that the 68mg/L of acidity and the 40-50mg/L of alkalinity may actually balance out to produce the displayed pH of 7.0
- Words. Carbonate System, ions, buffer, hydrogen bonding, idealised icosahedral clusters(!!)
- Symbols.
- Abbreviations. NaHCO3. Na+. CaCI2. MgSO. WTF?
In addition, whilst many coffee topics have been discussed in great detail over the years in forums, blogs and articles, there seem to be very few predecessors who have written about water. Jim Schulman's Insanely Long Water FAQ is quite a seminal post, with fantastic info, but I found that again the words/symbols/abbreviations made it difficult to understand.
Now that I've gained a basic understanding, I realise that there is a need for a beginner's guide to water quality, written in a way that helps simplify some of the chemistry. A caveat here though. It is impossible to properly understand coffee water quality without learning some basic chemistry, so what I'm about to write is certainly not everything you need to know, and the simplification process requires some key information to be omitted. My aim is just to share enough info to help others make the first step, so they can then continue to learn more on their own. Also, my own understanding is still incomplete & probably inaccurate, so if anyone would like to correct anything please do so. To understand this topic more fully, please buy and read the handbook from the SCAA website.
OK, here goes.
What is water?
You've heard of H2O. The abbreviation refers to the two components of completely pure water, hydrogen and oxygen. Nothing else. So immediately many will think "hang on, hydrogen and oxygen are gases". Correct. Actually, we need to think smaller. They are atoms, or rather bunches of hydrogen and oxygen atoms. And when those bunches meet, they stop being a gas and become a liquid. Water.
But you've probably never come across pure water. It is probably the most recycled substance on the planet. The water we drink has picked up lots of other things along the way. What things? Good question. The simple answer is, things that change the flavour of your coffee. Some good things, some bad things. And those things appear in different quantities depending upon where the water came from and what has happened to it. Some water is quite pure, with very few things, other water is full of the things. And the things appear in different proportions too. So no two waters (from two different sources) are the same. Hence no two coffees will taste the same if you use different water.
Let's call these things 'solids'.
Some over-simplified definitions.
So what are these solids?? OK, a little basic chemistry. Atoms and molecules. Stay with me, now! An atom is the basic building block of EVERYTHING. Put a few atoms together and you have a molecule. So everything is made up of atoms and molecules, bunching together like magnets. That's an important concept. There are different combinations of atoms and molecules, and each different combination makes something different. For example, hydrogen and oxygen make water. Table salt is a combination of sodium and chloride. Whoah, whoah!! what are those things? It doesn't matter for now. Just think of everything in the world being make up of different structures of molecules. So salt tastes like salt because of its molecules. Chocolate tastes like chocolate because it has other molecules. etc etc. And very small changes in the molecules can have a big impact upon what something tastes of.
Great! Now we understand why things taste differently too. But let's get back to water.
Total Dissolved Solids (TDS)
So water consists of hydrogen, oxygen, and other solids. This is probably sounding familiar. Coffee people have heard of measuring water TDS, which is a basic way of expressing how pure, or unpure the water is. How many 'things' are in there. And recently in the UK some baristas have begun measuring their water TDS, and trying to use water with a particular quantity of solids... around 150ppm (parts per million) is the target, coming from the SCAA guidelines. The theory is that if you have too many solids (eg 300ppm) or two few (eg 30ppm) then the coffee will not brew correctly and will taste bad... or not taste as good as it could, anyway. (More on why this would be the case later.)
Quality-focused baristas seek to improve the water they have available to them, through different types of water treatment. But in truth few of us currently understand what kind of treatment we need. If TDS is high, we seek ways to reduce it. If TDS is low, we generally just accept it. Reverse Osmosis systems have been developed, which purify water very effectively. I have not found anyone who has published details of their RO setup... what exactly it does to the water, which solids it removes, which solids are left behind, which additional pieces of the puzzle they have incorporated etc. It remains a bit of a secret at this stage, which is a little unhelpful to the barista community, who are still trying to get their heads around TDS.
So this is about as far as baristas seem to have got in the UK.
A closer look at Total Dissolved Solids
TDS is actually a very blunt way of describing these things in our water. It is a catch-all. I wouldn't say it is meaningless... that would be going too far, as it is a helpful statistic... but two waters could have the same TDS and still be completely different. One would make an exceptional coffee, and the other would make a cup of brown swill. This is due to the different ratios of all the different solids in there.
So we need to break this down further, if we really want our water to be perfect for brewing. And the SCAA have already done that part for us.
(NB some units of measure can be used interchangeably. One mg/L - milligram per litre - is exactly the same as one ppm - part per million.)
The above chart isn't perfect but it gives us some key info. So there's the 150ppm right in the middle. I'm going to ignore odor and colour because the majority of drinking water in the UK comes via a regulated mains water supplier, and they ensure that there are no smells or colour taints. The 150ppm is broken down into:
(a) Calcium Hardness: 68ppm
(b) Alkilinity: 40ppm
(c) Sodium: 10ppm
(d) Other: 32ppm
Total = 150ppm
Item (d) is the reason the chart isn't perfect, in my view. 32ppm is quite a big unexplained number and if anyone could enlighted me as to why the SCAA have not commented on it then please feel free to comment below. I would imagine that 32ppm of other solids would affect the brewing process somehow.
What about pH?
It's all about balance. Think of a see-saw in a playground. On one side is Acidity. On the other side is Alkalinity. They are opposing forces. This is pH, and it is measured on a scale of 0-14.
- When they are evenly balanced then the water is neither predominantly acidic nor predominantly alkaline. Neutral pH is at the centre point of the scale, and measures 7.0
- If Acidity is greater (than alkalinity) then the see-saw tips in its favour. pH drops below 7.0, and the lower the pH the more acidic the water is.
- If Alkalinity is greater, pH is higher than 7.0 and the closer it is to 14 the more alkaline the water is.
So the SCAA Guideline is 7.0, right in the centre.
Acid? Alkaline? This is water, isn't it?
Don't think of it that way. As I said above, no two waters are the same. Some waters are acidic, some are alkaline. The coffee will taste different for each.
So what makes it acidic or alkaline?
It comes back to the balance of items a, b, c and d shown above.
- Calcium Hardness contributes to acidity. Infact it is not just Calcium contributing to acidity. Magnesium is another factor, and others. But Calcium plays a bit part in drinking water. (Calcium is a metal mineral that we can ingest in small quantities, like iron.)
- Alkalinity is self-evident. Several things contribute to alkalinity, including hydroxide and bicarbonate.
- Sodium also increases alkalinity.
Do the math(s)
So on one side of our see-saw we have 68ppm of acidity.
On the other side we have 50ppm of alkalinity (40+10).
But we know that the SCAA Target water has a neutral pH of 7.0, so there may be another 12ppm of alkalinity within the 'other' things in there, coming from something else. (But see note 1 below.)
How we can use this information
If you own a TDS meter, great. But how do you know what your Calcium levels are? Perhaps your Calcium is 90ppm, which is too high. You certainly don't want to add MORE calcium to your water. So we need to be able to measure the acidic Calcium Hardness part of our TDS total. We also need to know the amount of alkaline solids.
Thankfully there are ways to measure these. A simple (if not the most accurate) solution is to use test strips like the ones used by aquarium and swimming pool owners, readily available at low costs on ebay. Search for Calcium Hardness Test Strips, and also KH Test Strips... KH is an abbreviation for Carbonate Hardness, which is just another way of referring to those solids mentioned above that contribute to alkalinity.
Then we look for water treatment that fits the bill. For example, I have in the past used water with a TDS of around 90ppm, and a pH of around 6.8 i.e. slightly acidic. A Calcium Hardness test strip revealed around 60ppm of Calcium, which is close to the SCAA Guideline of 68ppm, which is good. So if I wanted to increase my TDS to 150ppm, I would NOT want to add more calcium, as that would make the water more acidic, when actually I wanted to make it LESS acidic... i.e. get closer to a pH of 7.0 by adding alkalinity. So I would need some sort of water treatment cartridge that increases hydroxide or bicarbonate by around 30-40 ppm. That's the theory. I hope that makes sense and that I haven't lost you in the words and abbreviations.
Why do these ratios of water 'things' affect coffee brewing?
Many of us think that brewing coffee is just using hot water to wash off coffee particles from the beans, but that isn't the whole picture. Remember those molecules bunching together like magnets? Well the hot water causes chemical reactions to occur. Molecules in the coffee and the water become 'lively' because of the heat, and they begin to jump from place to place, magnetising themselves to other molecules of water/coffee. This creates a variety of different structures of molecules, and as mentioned earlier in this post, different groupings of molecules create different flavours.
So the 'ingredients' i.e. the solids that are in the water, affect this process.Having too much alkaline bicarbonate, for example, makes the coffee taste flat. (See the handbook for more details on this.)
End of part 2!
As always, still much more to learn. But I hope this has helped in some small way and if I can answer questions then I will. There is a lot more info beneath this that it wasn't possible to include in this post. Maybe if there was one thing I might suggest to anyone looking for advice, it would be to find out more about the different types of water treatment on the market, and what they do to the water. Some use technology that the water handbook says is detrimental to coffee brewing! What does yours do, and what do you want it to do? This information is difficult to find out from websites, but I've found the guys at companies like 3M to be very open to discussing such things.
Notes
1. I have over-simplified the way acidic and alkaline solids balance out to achieve a pH of 7.0. There is an effect called Buffering which means that 10mg of acidity and 10mg of alkalinity do not necessarily balance out. Hence in the example above, I think (although I may be wrong!) that the 68mg/L of acidity and the 40-50mg/L of alkalinity may actually balance out to produce the displayed pH of 7.0
Monday, 24 September 2012
Stage Fright
Disclaimer: If you work in a coffee business that predominantly targets customers who are experiential, niche or already speciality coffee fans, rather than the general public, that's great but this post isn't for you. It is written with consideration for those who want to see good quality, speciality coffee reach its full market potential and be the norm with the general public and in coffeeshops across the UK.
Around 18 months ago I wrote a short blog post entitled Can We Make It Easier For Customers? At the time I was a still relative newcomer to speciality coffee, and wanted to learn more. But it struck me that people within this niche industry were prone to using coffee descriptors that alienated customers like me. I found it tough to relate to the use of ornate language, and was frustrated. I also found it intimidating to order at some coffeeshops because (a) I wasn't sure what or how to order these types of coffee, and (b) the guy/girl behind the counter gave off seriously intense vibes that he/she wasn't interested in helping out people who didn't understand. Their expressions actually frightened me off.
But hey... what did I know? I was a newbie, right?
As the months passed I became, as we all do, a coffee obsessive. As part of my learning process I worked on improving sensory skills. Early on I wrote How To Taste Coffee, which rather than being a tutorial (I was not qualified to write such a thing), was my (slightly embarrassing) attempt to work my coffee tasting and descriptive abilities into some semblence of a process that I could consistently repeat. I discovered the Wine Aroma Wheel and with it sought to expand my coffee vocabulary further. I took part in a competition, requiring me to (amongst other things) furnish the judges with a clear description of my drinks, using typical barista vernacular. I eventually learned the true nature of Ted Lingle's Coffee Flavour Wheel when I read the SCAA Cuppers Handbook, which provides masses of detail regarding coffee aromas, flavours and descriptors. I began adopting a formal cupping procedure to help develop my palate. I became a home-roaster, delving deeper into the factors that influence the cup. I no longer felt like a newcomer. I had leapt over the bar and now stood behind it, beside my fellow baristas, talking the descriptive talk. In my quest for coffee knowledge I deliberately unlearned what it is like to be a relative newcomer to speciality coffee.
That's worth repeating. I deliberately unlearned what it is like to be a relative newcomer to speciality coffee. In other words, what it is like to be an average customer.
Shameful.
For anyone who (like me) has been on a coffee journey, investing time, effort and money in their passion, it is difficult to admit to having lost one's wider perspective. After all, we are speciality coffee evangelists, and we have conditioned ourselves to promote, with unwavering zeal, the path of righteousness. (Or could that be self-righteousness?) In a bid to encourage dialogue between customers and coffeeshop staff regarding coffee quality, I set up a Facebook page to encourage sending back bad coffee - in the politest possible way. I was so sure it would help the cause. It didn't. No matter how tactful I was when returning the bad coffee, the dialogue was always awkward and feedback was always rejected. The gulf between my vision of coffee and their vision of coffee was so great that we could not even begin to find common ground. Eventually I deleted the Facebook page as it was at risk of making things worse. Of making the gulf even larger. Perhaps of making coffee afficionados like me look like cocks. In a completely unrelated incident, a sign appeared in an independent cafe window in Brick Lane. It read "No Coffee Wankers!" It made me wonder...
But my self-assurance in preaching the speciality coffee gospel soon returned. "We know best, we self-proclaimed coffee geeks. Yes... we know best. If only we could convince the general public. Those poor ignorant souls drinking bad coffee. " So we're back to dialogue. To communication. To good signage. To setting the stage. Surely these things will help convince the general public... the relative newcomer to speciality coffee, won't they?
I actually do passionately believe that effective dialogue and communication is so important to our industry's aims. Improved dialogue between the speciality coffee world and the relative newcomer/average joe customer. If done well then newcomers will flood to speciality coffee on a mass scale, rather than the dribbling niche movement that it remains to this day. Effective dialogue and communication. This is something I think many in the industry agree upon, and the need for it has been documented exceedingly well by the 2012 UK Barista Champion in his blog.
But how can we do it well? How can we make the dialogue effective? These are, to my mind, the big questions. Despite some compelling arguments made by credible industry members, there is room for further debate. My view is we are still failing to get through to the public at large, still failing to make it easier for customers. The messages are still not clear.
- We still use lengthy descriptors and flavour notes, and because we love them, and coffee-educated customers love them, we wrongly assume relative newcomers to speciality coffee will love them too. We bang on to the unsuspecting public about temperature, grind size, the altitude the beans were grown at, and how complex the brewing process is.
- We then demonstate this by pulling our a syphon with a halogen beam heater, temperature probes and squiggly stirring techniques. This makes us hope the customer will realise how skilled we are, and will suddenly realise the error of their ways & become a speciality coffee convert.
- We keep moving the goalposts. For example, last year we said that latte art a difficult thing to achieve and was a sign that your barista has devoted time to developing his skill. This year the cool kids are saying that latte art is easy to teach and should be avoided by any self-respecting barista. How are customers supposed to know which is good and which is bad?
Another reason we are failing in our communication is our over-aversion and over-reaction to the branded chains. We all know the saying... "You can't hope to compete with Starbucks, so don't try. Focus on your strengths instead." So we focus on making good coffee, which we do exceptionally well. And we do a rotten job of various other factors that the branded chains do well, and which customers enjoy. For example,
- We spend as little as possible on environment. We offer uncomfortable seating on makeshift or shabby second hand furniture, because we're distancing ourselves from the Central Perk comfy chair thing with its 16oz latte connotations. Little or no heating in the customer area. No background music and tweets about how annoying background music is (honestly - when did music of your own choice and played at your own volume become annoying?)
- We offer a tiny food menu, if any, thus making it all about the coffee. Admirable, but ultimately many speciality coffeeshop owners eventually either close down or increase their food focus as they realise (a) many customers like to eat something when they drink something, and (b) you have to sell a helluvalot of cups of coffee to cover your rent.
So we assume all of the above are the right things to do. And this false assumption is reinforced because we see other baristas and coffeeshops doing it too, and we tell ourselves that it must be right if that is what they're doing at that amazing artisan coffeeshop everyone's talking about. It must be right if our favourite roaster is doing it. It must be right - because if it turned out to be wrong then our egos would be crushed by how misguided we were. This highights another quirk of the specality coffee industry. We have our industry luminaries... often people who have achieved success in a coffee competition somewhere around the world. And because they have succeeded in that we listen to them. And often we trust their opinions more than they necessarily deserve or want. In a recent discussion someone said to me:
Like I say, we have these views regarding the right things to communicate what we do. And I admit it, they are right - for some coffee businesses. Some customers like it. Some customers are immediately won over by what they see and experience. And some are attracted to the niche nature of artisan coffeeshops. And some are influenced by their friends and acquaintances who are already speciality coffee lovers. And some, like I was, are intrigued and interested enough to press beyond their initial confusion with this new and different way of presenting a cup of coffee.
But we in the industy are deluding ourselves if we truly believe we've found the best approach to dialogue and communication - one that will work nationwide, with the general public in its many shapes and sizes.
Saying anything unflattering about the speciality coffee industry feels weird, like I'm some sort of traitor. But it is the opposite. I care about this enough to risk the wrath of my coffee colleagues. And I'm not alone in recognising this situation. As I type, the online coffee news magazine Sprudge have just published a piece on this subject, contrasting two US writers' views. In Time Magazine, Josh Ozersky's article The Perils Of Coffee Snobbery opening paragraph includes the statement - "The cult of coffee, at least in its most puritanical form, is deeply alienating, even to me". He goes on to say that "So-called third wave coffees...are the best coffees that can be had in America", but goes on to use terms such as "insufferably pretentious", "self-congratulatory" and "sanctimonious", and alludes to contempt for consumers. Erin Meister's article All Get Along also recognises the jarring reaction that can happen when hipster baristas and ordinary customers meet. Meister reminds baristas that customers are "not the enemy, and they are not 'beneath' you".
Initial responses to Ozersky's article from those in the speciality coffee industry are very defensive and somewhat savage, as expected. Rather than take it as useful feedback, they see it as an insult and respond with more insults.
The US has a stronger coffee-drinking culture than the UK, and arguably experiences a lot of coffee-related scenarios a few years before the UK market does (for example, Intelli had customers queueing out of the doors for V60s long before pourovers were readily available in UK independents). So we in the UK have an opportunity to listen and learn from the experience of the US speciality coffee industry, and try to avoid history repeating itself - to curtail that disconnect betweeen baristas and customers before the phrase 'coffee wanker' becomes commonplace amongst the UK customer base, and Costa start using it in their adverts.
I don't have the answers, of course. Mainly because there is no single correct answer. The answer, if there is one, is that each of us ask ourselves the right questions... and come up with our own right answers rather than using someone elses. So I can tell some of you MY answers, the ones we will adopt in my own cafe.
1. We will serve good coffee. I am happy with that descriptor. The best coffee, I hope. We will buy our coffees from a roaster who we believe is the one of the world's finest, for all the right reasons.
2. We will train our staff, and train, and train, ad infinitum, and they will self-train too. Not just in coffee, but in Hospitality... the industry in which we operate.
3. Our equipment ... I believe there is far too much emphasis on which machine a coffeeshop uses. The machines coming out these days are amazing, and make it easier for a barista do his/her job consistently well, but the machine must be fit for purpose and not just a badge to prove that you're in the Serious Barista Club. Excellent espresso does not require a multi-boiler with endless steam and a reflective plate on the drip tray for eagerly watching the naked portafilter drip at a rate so slow that the espresso tastes acrid. We are able to devote time to building love for our HX machine. Our grinders are possibly our most important fixed asset, followed by our building's water supply and treatment.
4. We will not overwhelm customers with this information unless they ask us to. We will give them what we think is amazing coffee and let them decide. Often it will be free, as a sample taster. I believe they will be able to taste the difference, and that will be one of the catalysts for their permanent transition to speciality coffee.
5. As I mentioned the syphon earlier, yes we will use that brew method. But judiciously, and only when it suits the beans and helps produce that amazing coffee.
6. We will use descriptors, and in truth we will not be afraid of simplifying our narrative. I would not call it dumbing down though. Dumbing down, whether in news articles, Saturday night TV, or indeed coffee, generally results in a lower quality product. Our product will retain its quality, despite being described in an accessible manner.
7. We will offer a mix of comfortable seating and reclaimed dining chairs to go with our handmade farmhouse tables.
8. We will use Extract Mojo for quality control and to help us dial in brewed coffees, but behind the counter, both literally and figuratively.
9. A significantly larger part of our net profit will come from food than from coffee. Shock horror. I said it. So does that mean our coffee will be any worse? Many will assume so before trying it, because it is usually difficult to find good coffee in a restaurant, so they will do the 2+2+5 thing. I hope I can change that.
10. There are different ways to apply it, and we will never compromise on quality, but we will consistently adopt a time-honoured principle that many coffee professionals have found difficult to reconcile with their own view of the world. The Customer Is Always Right. As a means of improving communication and dialogue, it's a good start I think.
Around 18 months ago I wrote a short blog post entitled Can We Make It Easier For Customers? At the time I was a still relative newcomer to speciality coffee, and wanted to learn more. But it struck me that people within this niche industry were prone to using coffee descriptors that alienated customers like me. I found it tough to relate to the use of ornate language, and was frustrated. I also found it intimidating to order at some coffeeshops because (a) I wasn't sure what or how to order these types of coffee, and (b) the guy/girl behind the counter gave off seriously intense vibes that he/she wasn't interested in helping out people who didn't understand. Their expressions actually frightened me off.
But hey... what did I know? I was a newbie, right?
As the months passed I became, as we all do, a coffee obsessive. As part of my learning process I worked on improving sensory skills. Early on I wrote How To Taste Coffee, which rather than being a tutorial (I was not qualified to write such a thing), was my (slightly embarrassing) attempt to work my coffee tasting and descriptive abilities into some semblence of a process that I could consistently repeat. I discovered the Wine Aroma Wheel and with it sought to expand my coffee vocabulary further. I took part in a competition, requiring me to (amongst other things) furnish the judges with a clear description of my drinks, using typical barista vernacular. I eventually learned the true nature of Ted Lingle's Coffee Flavour Wheel when I read the SCAA Cuppers Handbook, which provides masses of detail regarding coffee aromas, flavours and descriptors. I began adopting a formal cupping procedure to help develop my palate. I became a home-roaster, delving deeper into the factors that influence the cup. I no longer felt like a newcomer. I had leapt over the bar and now stood behind it, beside my fellow baristas, talking the descriptive talk. In my quest for coffee knowledge I deliberately unlearned what it is like to be a relative newcomer to speciality coffee.
That's worth repeating. I deliberately unlearned what it is like to be a relative newcomer to speciality coffee. In other words, what it is like to be an average customer.
Shameful.
For anyone who (like me) has been on a coffee journey, investing time, effort and money in their passion, it is difficult to admit to having lost one's wider perspective. After all, we are speciality coffee evangelists, and we have conditioned ourselves to promote, with unwavering zeal, the path of righteousness. (Or could that be self-righteousness?) In a bid to encourage dialogue between customers and coffeeshop staff regarding coffee quality, I set up a Facebook page to encourage sending back bad coffee - in the politest possible way. I was so sure it would help the cause. It didn't. No matter how tactful I was when returning the bad coffee, the dialogue was always awkward and feedback was always rejected. The gulf between my vision of coffee and their vision of coffee was so great that we could not even begin to find common ground. Eventually I deleted the Facebook page as it was at risk of making things worse. Of making the gulf even larger. Perhaps of making coffee afficionados like me look like cocks. In a completely unrelated incident, a sign appeared in an independent cafe window in Brick Lane. It read "No Coffee Wankers!" It made me wonder...
But my self-assurance in preaching the speciality coffee gospel soon returned. "We know best, we self-proclaimed coffee geeks. Yes... we know best. If only we could convince the general public. Those poor ignorant souls drinking bad coffee. " So we're back to dialogue. To communication. To good signage. To setting the stage. Surely these things will help convince the general public... the relative newcomer to speciality coffee, won't they?
As I write this I begin to see the similarities with Jehovah's Witnesses who knock on your door in pairs, like an odd version of Will Smith and Tommy Lee Jones in Men In Black. There we are, we enlightened coffee folk, certain of our message, trying to find someone who will listen, who will be readily converted to the Church Of The Third Wave. Normal people point at us and snigger.
I actually do passionately believe that effective dialogue and communication is so important to our industry's aims. Improved dialogue between the speciality coffee world and the relative newcomer/average joe customer. If done well then newcomers will flood to speciality coffee on a mass scale, rather than the dribbling niche movement that it remains to this day. Effective dialogue and communication. This is something I think many in the industry agree upon, and the need for it has been documented exceedingly well by the 2012 UK Barista Champion in his blog.
But how can we do it well? How can we make the dialogue effective? These are, to my mind, the big questions. Despite some compelling arguments made by credible industry members, there is room for further debate. My view is we are still failing to get through to the public at large, still failing to make it easier for customers. The messages are still not clear.
- We still use lengthy descriptors and flavour notes, and because we love them, and coffee-educated customers love them, we wrongly assume relative newcomers to speciality coffee will love them too. We bang on to the unsuspecting public about temperature, grind size, the altitude the beans were grown at, and how complex the brewing process is.
- We then demonstate this by pulling our a syphon with a halogen beam heater, temperature probes and squiggly stirring techniques. This makes us hope the customer will realise how skilled we are, and will suddenly realise the error of their ways & become a speciality coffee convert.
- We keep moving the goalposts. For example, last year we said that latte art a difficult thing to achieve and was a sign that your barista has devoted time to developing his skill. This year the cool kids are saying that latte art is easy to teach and should be avoided by any self-respecting barista. How are customers supposed to know which is good and which is bad?
Another reason we are failing in our communication is our over-aversion and over-reaction to the branded chains. We all know the saying... "You can't hope to compete with Starbucks, so don't try. Focus on your strengths instead." So we focus on making good coffee, which we do exceptionally well. And we do a rotten job of various other factors that the branded chains do well, and which customers enjoy. For example,
- We spend as little as possible on environment. We offer uncomfortable seating on makeshift or shabby second hand furniture, because we're distancing ourselves from the Central Perk comfy chair thing with its 16oz latte connotations. Little or no heating in the customer area. No background music and tweets about how annoying background music is (honestly - when did music of your own choice and played at your own volume become annoying?)
- We offer a tiny food menu, if any, thus making it all about the coffee. Admirable, but ultimately many speciality coffeeshop owners eventually either close down or increase their food focus as they realise (a) many customers like to eat something when they drink something, and (b) you have to sell a helluvalot of cups of coffee to cover your rent.
So we assume all of the above are the right things to do. And this false assumption is reinforced because we see other baristas and coffeeshops doing it too, and we tell ourselves that it must be right if that is what they're doing at that amazing artisan coffeeshop everyone's talking about. It must be right if our favourite roaster is doing it. It must be right - because if it turned out to be wrong then our egos would be crushed by how misguided we were. This highights another quirk of the specality coffee industry. We have our industry luminaries... often people who have achieved success in a coffee competition somewhere around the world. And because they have succeeded in that we listen to them. And often we trust their opinions more than they necessarily deserve or want. In a recent discussion someone said to me:
When a coffee pro, a respected one with great accolades, stands up and announces something… we should listen, then digest it, and THEN come up with a response that takes time to craft. MORE time than the professional spent on their original statement. Why more time? Because they have more experience in the field.I agree with this statement... insofar as it refers to coffee and the preparation thereof. But coffee industry accolades do not equate to business management success. Just because a World Barista Champ says something, that doesn't mean it is correct. Particularly if it is about marketing, or pricing, or interior design, or customer opinions across the entire nation. It just means they have an opinion.
Like I say, we have these views regarding the right things to communicate what we do. And I admit it, they are right - for some coffee businesses. Some customers like it. Some customers are immediately won over by what they see and experience. And some are attracted to the niche nature of artisan coffeeshops. And some are influenced by their friends and acquaintances who are already speciality coffee lovers. And some, like I was, are intrigued and interested enough to press beyond their initial confusion with this new and different way of presenting a cup of coffee.
But we in the industy are deluding ourselves if we truly believe we've found the best approach to dialogue and communication - one that will work nationwide, with the general public in its many shapes and sizes.
Saying anything unflattering about the speciality coffee industry feels weird, like I'm some sort of traitor. But it is the opposite. I care about this enough to risk the wrath of my coffee colleagues. And I'm not alone in recognising this situation. As I type, the online coffee news magazine Sprudge have just published a piece on this subject, contrasting two US writers' views. In Time Magazine, Josh Ozersky's article The Perils Of Coffee Snobbery opening paragraph includes the statement - "The cult of coffee, at least in its most puritanical form, is deeply alienating, even to me". He goes on to say that "So-called third wave coffees...are the best coffees that can be had in America", but goes on to use terms such as "insufferably pretentious", "self-congratulatory" and "sanctimonious", and alludes to contempt for consumers. Erin Meister's article All Get Along also recognises the jarring reaction that can happen when hipster baristas and ordinary customers meet. Meister reminds baristas that customers are "not the enemy, and they are not 'beneath' you".
Initial responses to Ozersky's article from those in the speciality coffee industry are very defensive and somewhat savage, as expected. Rather than take it as useful feedback, they see it as an insult and respond with more insults.
The US has a stronger coffee-drinking culture than the UK, and arguably experiences a lot of coffee-related scenarios a few years before the UK market does (for example, Intelli had customers queueing out of the doors for V60s long before pourovers were readily available in UK independents). So we in the UK have an opportunity to listen and learn from the experience of the US speciality coffee industry, and try to avoid history repeating itself - to curtail that disconnect betweeen baristas and customers before the phrase 'coffee wanker' becomes commonplace amongst the UK customer base, and Costa start using it in their adverts.
I don't have the answers, of course. Mainly because there is no single correct answer. The answer, if there is one, is that each of us ask ourselves the right questions... and come up with our own right answers rather than using someone elses. So I can tell some of you MY answers, the ones we will adopt in my own cafe.
1. We will serve good coffee. I am happy with that descriptor. The best coffee, I hope. We will buy our coffees from a roaster who we believe is the one of the world's finest, for all the right reasons.
2. We will train our staff, and train, and train, ad infinitum, and they will self-train too. Not just in coffee, but in Hospitality... the industry in which we operate.
3. Our equipment ... I believe there is far too much emphasis on which machine a coffeeshop uses. The machines coming out these days are amazing, and make it easier for a barista do his/her job consistently well, but the machine must be fit for purpose and not just a badge to prove that you're in the Serious Barista Club. Excellent espresso does not require a multi-boiler with endless steam and a reflective plate on the drip tray for eagerly watching the naked portafilter drip at a rate so slow that the espresso tastes acrid. We are able to devote time to building love for our HX machine. Our grinders are possibly our most important fixed asset, followed by our building's water supply and treatment.
4. We will not overwhelm customers with this information unless they ask us to. We will give them what we think is amazing coffee and let them decide. Often it will be free, as a sample taster. I believe they will be able to taste the difference, and that will be one of the catalysts for their permanent transition to speciality coffee.
5. As I mentioned the syphon earlier, yes we will use that brew method. But judiciously, and only when it suits the beans and helps produce that amazing coffee.
6. We will use descriptors, and in truth we will not be afraid of simplifying our narrative. I would not call it dumbing down though. Dumbing down, whether in news articles, Saturday night TV, or indeed coffee, generally results in a lower quality product. Our product will retain its quality, despite being described in an accessible manner.
7. We will offer a mix of comfortable seating and reclaimed dining chairs to go with our handmade farmhouse tables.
8. We will use Extract Mojo for quality control and to help us dial in brewed coffees, but behind the counter, both literally and figuratively.
9. A significantly larger part of our net profit will come from food than from coffee. Shock horror. I said it. So does that mean our coffee will be any worse? Many will assume so before trying it, because it is usually difficult to find good coffee in a restaurant, so they will do the 2+2+5 thing. I hope I can change that.
10. There are different ways to apply it, and we will never compromise on quality, but we will consistently adopt a time-honoured principle that many coffee professionals have found difficult to reconcile with their own view of the world. The Customer Is Always Right. As a means of improving communication and dialogue, it's a good start I think.
Wednesday, 22 August 2012
A Short Break
My beverage learning process will hopefully never stop. It began with coffee. It is expanding into tea. I have always had a penchant for wines but the sensory education that coffee has provided translates very well to sommelier training, so that is another area to be explored. Who knows what after that?
But I need to place things on a temporary hold. The past few years have been building up to something, namely the opening and stabilisation of a cafe/restaurant. The opening part is now about to happen. Right now all my daytimes are spent at the premises and all my evenings/nights are spent at the computer on plans, equipment websites, writing web content, etc etc. Actually, the learning process hasn't stopped, it has just been redeployed. Today my wife stared at me quite dumbstruck at the various new language I've learned. "Low pressure gas meter running at 21 millibar"... "a dot-and-dab is no good, it needs framing and a kingspan board"... "we need a rodding point up by that alkathene pipe". When you open a cafe/restaurant there's a lot more to it than food, drinks, service and management. You become (to an extremely unskilled degree) a jack of all trades.
So for a short time I probably won't be able to post anything on this blog, since I won't have time for dedicated academic learning on the beverage front. My learning will be hands-on, in the cafe.
See you on the other side of the opening phase.
But I need to place things on a temporary hold. The past few years have been building up to something, namely the opening and stabilisation of a cafe/restaurant. The opening part is now about to happen. Right now all my daytimes are spent at the premises and all my evenings/nights are spent at the computer on plans, equipment websites, writing web content, etc etc. Actually, the learning process hasn't stopped, it has just been redeployed. Today my wife stared at me quite dumbstruck at the various new language I've learned. "Low pressure gas meter running at 21 millibar"... "a dot-and-dab is no good, it needs framing and a kingspan board"... "we need a rodding point up by that alkathene pipe". When you open a cafe/restaurant there's a lot more to it than food, drinks, service and management. You become (to an extremely unskilled degree) a jack of all trades.
So for a short time I probably won't be able to post anything on this blog, since I won't have time for dedicated academic learning on the beverage front. My learning will be hands-on, in the cafe.
See you on the other side of the opening phase.
Sunday, 29 July 2012
Milk Chemistry In Espresso Drinks
Recently I switched the type of (cow's) milk I use in espresso-based drinks, from Arla's Cravendale (which is marketed as, and rumoured to be the barista's favourite in the UK) to milk from my local dairy. The milk has approximately the same fat content of just under 2% (semi-skimmed), but it is visibly much more of a solid white rather than having that slightly translucent appearance that Cravendale semi-skimmed has. It also tastes more like whole milk... more flavoursome ... more wholesome. In a traditional 6oz cappuccino it makes fewer bubbles, smoother microfoam, and results in a more delicious coffee drink. As a barista I just find it to be a better ingredient.
So if we assume a 1oz shot (I'm using volume rather than mass just to make it easier to communicate) and 3.5oz of milk (pre-stretch), that cappuccino consists of (very approximately):
I have so many questions. For example:
So if we assume a 1oz shot (I'm using volume rather than mass just to make it easier to communicate) and 3.5oz of milk (pre-stretch), that cappuccino consists of (very approximately):
- 2.2% coffee solids
- 20% water
- 77.8% milk
I have so many questions. For example:
- Obviously, what is it that makes one milk taste better than another? Cow diet, no doubt, but which dietary components lead to which milk flavours? Shouldn't we be speaking more closely with milk suppliers regarding this?
- Why does my new milk have less bubbles when steamed? (This one has been discussed on forums and it has been suggested that it relates to the use of supplements in cow feed during winter. I'd like to find other possible reasons.)
- What chemical reactions are happening during the steaming process, and how do each of these affect flavour?
- The whole "don't stretch the milk after 100F" thing is such an established part of barista training, but what is it all about (what IS denaturing of proteins)?
87% of milk is... water! So even in the average milky cappuccino, around 88% of the cup is actually H2O!!
Lactose is a sugar found only in milk. It is often said that milk sweetness in a cappuccino or flat white comes from the lactose. However, lactose is about 30 times less sweet than standard cane sugar.
On arrival at a dairy, up to 10% of the content of milk is gas... including CO2 and nitrogen. A source of bubbles, perhaps?UPDATE: It seems Morten Münchow is the man when it comes to milk chemistry relating to coffee. Let's see how I get on...
Sunday, 8 July 2012
Changes in store for WBC Judges and Competitors
During
the recent World Barista Championships we saw Stephen Morrissey (2008
WBC Champion) discussing WBC judges' scoring with the comperes,
Nicholas Cho, James Hoffmann and Stephen Leighton. For me his
insights were fascinating. For example, he said (and I'm
paraphrasing, so forgive me if this isn't exactly correct) that the
ideal scoresheet as completed by a judge is one that should need
no further verbal feedback...
that for every score on the sheet, the judge should write a comment
explaining that score well enough for the competitor to understand
why that score was given. Upon hearing that I couldn't help feeling
that, however, that Stephen's is perhaps an idealistic view of the
transparency within WBC scoring. My own experience was extremely
rewarding but it left me with many unanswered questions and not
enough clarity of what I need to do differently in future
competitions. (“Buy a watch” was the advice jokingly given by one
judge, after I overran by 37 seconds.)
Stephen
is on the Board of World Coffee Events (WCE), the organisation that
runs and regulates the World Barista Championships - including
coordinating judging activities. I wanted to understand more from
Stephen's perspective, so I wrote to him. I'm sure he's a busy man
and can't reply to every email from random baristas around the world.
Nonetheless, I stuck my neck out because if you don't try then you
will never know. Surprisingly, he did read my email and
contacted two of his colleagues at WCE – Ellie Matuszak and Carl
Sara, who are the Co-Chairs of the committee that oversees all of the
competitions. The three of them decided to respond!
Thanks
so much for agreeing to this. For the benefit of readers could you
please explain who you are?
We're
chiming in on behalf of the WCE Competition Operations Committee
(COC). The COC is responsible for the work around this topic.
Great!
So... judging & scoresheets seem to be a sensitive subject for
competitors. What are your views on how well the current system
works?
At
present judges are evaluated based upon the Judge Competencies
framework. However, no secrets... the current status of WCE is a bit
unusual. The assessment tool, the Judges Calibration Workshop, was
built before standardized training toward it was created.
So
there is a gap in how judges are trained to attain the competencies
required to judge?
That
is why we are working on that training now. In fact, WCE is
currently developing a standardized judge training program to be in
use at the National Body level. We formed a specific subcommittee to
develop these modules, the Instructional Design Subcommittee or IDSC.
Ah
yes. I recall Instructional Design from the SCAA Instructor
Development Programme. In short, it's a model for building training
courses.
You
will recall that proper Analysis, Design and Development can make all
the difference in creating a successful training program or not (this
is called the “ADDIE” model of instructional design). No point in
doing any Implementation and Evaluation unless and until the AD&D
are fulfilled. This training program is huge. It is going to be about
10 separate modules, and based entirely on training toward the Judge
Competencies.
Sounds
good, but what does this actually mean? What will be different?
The
changes you should expect to see range from the obvious to the
less-so. First, judges will be trained better, meaning they will be
explicitly trained toward successfully meeting the Judge Competencies
(= better judging: more fair, more transparent, more accurate)
That's
a lot of training. So to clarify, would this new training only be
given to judges at the World Championships, and not at a National
level such as the UKBC?
No,
actually the opposite. We still will not be training judges at the
World Level- all training will take place at the National Body Level.
Judges can qualify to judge in the World competitions by passing the
Judge Certification Workshop. This means that judging from nation to
nation will be more consistent. Judging from the National Body level
to World Barista Championship level will be more similar. No more
surprises as in "my Head Judge trained me to do it a different
way" etc.
And
hopefully it will go all the way through to Regional judging too
(i.e. during National Heats), where there have been some high profile
critics of the standard of judging. How do you hope to get this
training delivered across so many judges in different places?
Long
term, we hope to continue to leverage the parent companies to grow
and distribute the training, but we are still working out the details
of what that means exactly. (Full disclosure, I am employed by one of
the parent companies.)
So
we should have better trained judges in future, who will all have a
better understanding of the rules and how to apply them. Great! But
what about competitors? We need a clear definition of what the judges
expectations are. No secrets! I have previously suggested a
Competitors Calibration Workshop. What is happening to address that?
One
of the forthcoming changes is that anyone who wishes to can sit the
National Body level judge training. Active barista competitors may
not judge in competitions, but can sit the training. Other
interested parties who want to learn about WBC (coaches, volunteers,
newbies) can participate in the training and learn something without
committing to judge (though we hope they do if they want to).
So
attending the judges training will help to prepare competitors for
their performance on competition day?
In
fact, some modules will be specifically designed for use in the
months prior to a competition, rather than at it.
Thanks,
Ellie. It sounds like a big improvement to me.
Thank
you for your candor and enthusiasm for the process of improving WCE
activity as an educational tool.
--------
As
a first time competitor in 2012 I saw many good things and some
not-so-good things. There is currently, I believe, an unnecessary
communication-gulf between competitors and judges. Some judges seem
to recognise this but are unsure how to make things better. When I
have previously asked for more clarity from judges, I have been told
“we
are not allowed to coach competitors”.
This problem presents a great opportunity for improvement! Both
parties could and should work together more collaboratively. It
seems to me that the guys at WCE have become aware of that, and are
being very proactive in addressing it in a professional manner. I
think the changes mentioned above are nothing short of a giant leap
for barista-kind, and I look forward to seeing how this is rolled out
globally. There will be challenges involved in implementing the new
training program, I suspect, but if it is implemented well then the
outcome will be a larger number of highly skilled baristas throughout
the world due to the competition being an even better learning tool
than it currently is. In my view the WBC remains one of the best
possible avenues for learning and fulfilling our potential as
baristas, and the future of the competition just got brighter.
To
learn more about the voluntary members of the WCE Advisory Board go
to http://www.worldcoffeeevents.org/about-us/advisory-board/
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