Espresso Blending: Insights and Innovation

Coffee is roasted. Coffee has an initial “de-gassing” and then coffee is ready to consume. That's the basics in layman's terms.

Here are some thoughts I have been exploring:

Different coffees are ready after a different amount of days, and furthermore, different coffees (in terms of realized flavor extraction) age differently. That being the case, it would make sense to construct your espresso blends to reflect this. So if you have a Sumatran coffee that takes 5 days to degas and a Guatemalan that takes 2 days, and an Ethiopian that takes 1 day, then if you roasted the Sumatra on Sunday, you would roast the Guatemala on Wednesday, and the Ethiopia on Thursday. By doing this, all the coffees are “ready” at the same time.

The second factor would be the longevity of said coffees flavor nuances. Now we know about coffee being good for X days from roasting, but in terms of realized flavor extraction of various beans at different roast profiles there is a window of useability for espresso that may or may not correlate with the specifics we find for brewed coffee. Yes, it may be a plus or minus shift of a day or two, so it is worth considering.

This is not detailed by any means, but it's something to get you to think a little bit. As a practice, it's certainly not a a simplistic one. You need to consider other factors, like: Does the flavor intensify over the useable time, and then drop off like a Dry Processed Ethiopian or does it peak from days 6-10 like a Central American coffee? What about percentages in a blend? How does roast level affect flavor nuance and stability? Then you correlate those factors to the initial degassing time and come up with a new set of variables. This is a simplistic look at some of the little discussed factors involved with maximizing the flavor potential in your espresso, and it is something I would suggest thinking about if you want to improve your craft. 

If you think about these kinds of things when you are roasting and blending, and would like to have a discussion, share your thoughts with me @ caffedbolla AT Yahoo DOT com.

Happy roasting!

Single Origin Espresso: How to create a multidimensional experience

Crafting a great single origin espresso should be approached the same was as you would in creating any other delicious espresso. Separate roasts. Separate profiles. Separate flavors. And then a wonderful espresso.

  

Espresso is not a tiny cup of coffee. It should not feel like a “tiny cup of coffee”when you drink it. Espresso has a density, intensity, and viscosity (mouthfeel). Whether it's floral and light stone fruit or dense chocolate and dark berry, espresso should still have a definite mouthfeel and density. Properly roasted and executed espresso has a density that supports and balances the clarity. Creating density enhances the clarity, it does not take away from it. Espresso that is thin and bright without the proper amount of sweetness and texture is simply an unbalanced espresso. Bracing flavor notes are not progressive, they are merely a sign of an underdeveloped or improperly developed roast.

Every coffee (probably) can be used in espresso, but not every coffee can be used as espresso. Sometimes the flavors developed in a particular coffee are too intense as an espresso. But those same notes will often be a wonderful supporting note or highlight if the proper balance is achieved in a simple two or three bean blend.

Ok. That's all fine and dandy, but how does one properly execute a single origin espresso?

There are a handful of coffees that are amazing out of the gate single origin, single roast espresso. Many of these can be improved by profile layering, but it's really not necessary. That being said, the issues are rarely with the coffee, rather they are a result of poor execution of said coffee as a single origin espresso.

When a coffee has great flavors at City, City+, Full City, and Full City+, why ignore that potential complexity by utilizing a single roast? Multiple layers of flavor and an unmistakeable textural mouthfeel are what makes an espresso come alive.

It's not always about choosing light and medium or light and dark. Sometimes, it is about small differences within a certain darkness (City+ for example) of roast, but differing profiles. One roast might be more nut forward, one more fruit forward, and one more balanced. Not only should you think like a skilled chef or a world-class mixologist and weave layers within layers, you should take the same time to develop your craft as they did to develop theirs.

You can choose simplicity or complexity, but even within simplicity, there are supporting areas of sweet, savory or umami that give dimension to the espresso. To truly understand the flavor potential you need to explore the range of possibilities at your fingertips. There are as many ways to construct your espresso with a single bean as there are with two or three. Simplicity is not about taking shortcuts, simplicity is a focused exploration of what's in front of you.

caffe d'bolla is twelve - Thank You!

Twelve years ago, Yiching and I officially opened our doors at caffe d'bolla. As all new businesses, we used a combination of determination and ingenuity to get everything off the ground. From traveling to trade shows, listening to as many presentations as we could, and taking furious notes to filling a trailer with all of our equipment – including a full size commercial refrigerator we squeezed through a hole in the drywall that would be a future door, turned on its side and rolled it on pipes before setting it in place, to working into the wee hours of the night so we could get everything right.

We spent every day in our shop together, taking turns running errands or having something to eat. We learned about the continuous discovery that is espresso, and latte art (which Yiching has always been better at), and I learned the craft of roasting so I could share something wonderful with our customers.

 Over the years, our hours have changed a little, and we have done a couple of remodels to the store, but one thing that has never changed is how much we love our shop and seeing smiles on customer's faces as they take their first sip. And although you may not see Yiching in the shop [much these days], she continues to bake our treats daily - from muffins to her perfect brownies, and she maintains our online presence (especially all the good pictures), and coordinates our overseas ordering and imports. This is all because more than two and a half years ago, our son Alex was born, and after an early introduction to coffee and espresso, he is now busy at home with Yiching learning all the things a curious and energetic boy should.


As the years go by, I know that Alex will learn how to pull the perfect espresso and brew siphon coffee to our standards. Maybe it will be you (yes, YOU) who tastes his first drink. Stay tuned for our celebratory "Thank You!" It's going to be another fantastic year!

The Americano: the barometer for judging any coffee shop or espresso bar

An artisan coffee shop or espresso bar should be able execute an exceptional Americano.  And if not, can they execute anything properly?

You think it would just be all about the espresso, and it is -- to a point. I've known top-notch places that have great espresso, and fail miserably when it comes time to make an Americano. A failed Americano is the result of either improperly roasted espresso, under or over-extracted espresso, bad drink building basics, non-caring barista (it's not a sexy drink), non-caring ownership, or all the above. The Americano is a foundation drink. There are no excuses for poor execution.

The Americano, the quicker, fresher alternative to batch-brewed coffee is a drink that should be easy to execute, and reveals what standards a coffee shop or espresso bar actually has as compared to those that they claim to have. The recipe is simple: espresso brewed directly into the hot water, which is already residing in the cup.

“What about espresso first, and then add water?” No.

“Or maybe pull shots into shot glasses or some funky pitcher looking thingamajig and then pour over the water?” Again, that would be a “No.”

But for the Americano to work, your water should never be hotter than your espresso. Water temperature, relative to brew temperature, altitude, etc. should be as low as 170 F (77 C) or less (ours is at 162  F) for the best results. Once the espresso exits the group head, it has already dropped several degrees by the time it hits the water. Another thing is -  your espresso, and the resultant Americano needs to have body and texture. The proper amount of lipids and oils are necessary for good crema density, texture, and mouthfeel. Without them, result is the same as a weakly brewed cup of coffee. A thin, watery, espresso-like concoction is not an Americano. It's just a bad drink.

There are many new places that have come about in recent years - both in our fair city, and across the globe, and the Americano, much like the Emperor's new clothes, reveals all -- and it isn't pretty.

So for all you current and prospective shop owners, barista, and coffee-beverage lovers of all types – If you can't make a tasty Americano, an honest to goodness “That's good!” Americano, then you might want to examine everything you are doing. Yep, it's that important.

caffe d'bolla. Gesha. Siphon.

After brewing somewhere north of ten thousand cups of coffee on the siphon, it's rare that I come across a coffee that separates itself so far from the others that the words “excellent,” “outstanding,” or “superb” simply do not communicate the brilliance of the coffee. This is one such coffee.

This is a Gesha from Acatenango in Guatemala. It is one of the two most complex coffees I have ever tasted. The other, a Gesha from the heralded Finca Esmeralda in Panama. Both are coffees that I roasted. These are two iterations of the same magical cultivar with differences arising from terroir and microclimate. With the Panama, and now, some five thousand or so cups later with the Guatemala, all I can say is “wow!”

Let me start by saying that this is not about experiencing one sensational coffee. It's like experiencing three distinctly different sensational coffees in one cup.

Once your coffee is poured, you will want to wait a good nine minutes to begin your journey. The first part of the cup greets you with complex floral notes from hibiscus, jasmine, rose, and lavender. A touch of peach blossom tea makes an appearance, and all the floral notes are interspersed with flavors of pomelo, pink grapefruit, and mandarin. A different set of flavor combinations in every sip, with a buttery mouthfeel elevating the experience.

A great siphon coffee, especially the Gesha, is about pacing. After an additional five to eight minutes of cooling, a juicy fruit punch and ripe berry note emerges for a few sips, with a silky essence caressing your tongue like an passionate lover, and leaving you with a warm, satisfied smile.

After another five minutes to eight minutes -- being wiser to opt for the latter, sweet cream and berries linger on your palate with a touch of assam tea and a hint of lemon-honey. And a hint of cocoa lingers on your palate if you wait for it. A little more patience, and you will be rewarded with the comforting essence of warm butterscotch sweetness in the final sips.

This is a journey worth savoring, and should take you thirty-five to forty-five minutes once the coffee touches your cup. Use your time well, and you will be rewarded.

The Acatenango Gesha will be offered on siphon starting on April 12^th for about two weeks. We will offer an additional run before the end of May.