Decaf coffee beans | What Roasters Need to Know About Decaf Coffee

Decaf coffee beans | What Roasters Need to Know About Decaf Coffee

Decaf coffee beans | What Roasters Need to Know About Decaf Coffee

Roasters, do not make the mistake of believing you can use exactly the identical roast profile for decaf and regular coffee. Decaffeination impacts the makeup of your own beans -- and subsequently, this impacts how heat is moved across the legumes' cells. If you would like to get the most from your own decaf beans, and actually allow their source to glow, you are likely to need to make a exceptional roast profile.

Just how should you accommodate your roast profiles to get a great-tasting decaf coffee? Aaron Braun, Coffee Quality Specialist in Swiss Water Decaffeinated Coffee Company, consented to talk about his guidance with me. Here is what I heard.


Decaf coffee beans | What Roasters Need to Know About Decaf Coffee

Aaron explains the goal of the Swiss Water procedure is to eliminate only the caffeine in the beans -- without even including any particular processing flavor. But even simply removing the caffeine can impact the structure of these beans. Let us take a peek at those gaps.

The very first thing you ought to be conscious of is the color difference. The decaffeination process will change the look of the java; in the event of Swiss Water, the legumes will be uniform in color but a couple of shades darker than traditional green coffee. "That visual look has to be taken under account," Aaron emphasises. "Coffee might seem decidedly more developed than it really is, and that means you want to pay particular attention to the temperature of the roast."

One other important point is that the bean fat: decaffeinated coffee is milder and less dense because the caffeine chemicals are eliminated. Then, this impacts the way the java reacts to heat.

That having been said, decaf coffee remains java. Say you own a decaf Ethiopian Yirgacheffe: the largest determiners of this roast profile are still likely to be that source, the elevation, the flavour profile, the number, etc.

What we're going to suggest is only a couple of tweaks for your own roasting procedure -- the sort of tweaks which will be certain you truly do get the most out of these green beans that are lovely.


Roasting always boils to heat. With decaf, you wish to be a little bit milder with it. Maintain the control temperature -- the warmth of your drum only until you add the java -- reduced. Your decaf beans have less fat and their mobile structure has been marginally degraded. This usually means that you ought to prevent heating them too fast.

Aaron would not give me a direct to the specific fever (after all, no 2 coffees would be exactly the same). But he informs me when they sample roast their decaffeinated coffees in the Water facilitiesthey utilize a fee temperature of 375--400ºF/190.5--204.5ºC.


Be mindful to not roast your own coffee for a long time, or too brief, a moment. First crack should happen at roughly the exact same period for both decaf and regular beans. On the other hand, the roast is very likely to advance quicker after first crack if it is decaf from the drum. This is due to the degraded tissues and lighter weight. You could be amazed by how fast second crack comes about.

On the flip side, do not forget that the beans will be darker than ordinary ones. Do not let this fool you into quitting early. Roasting decaf coffees is a fragile balance: you want to look closely at the growth of these delicious coffee scents, your own drum temperature, and much more.


Decaf coffee beans | What Roasters Need to Know About Decaf Coffee

The same as with regular coffee, you're going to want to cup your beans after roasting them. However, Aaron also urges paying careful attention to the floor colour consistency. Considering that the bean surface color is darker, it is even more crucial that you look at on the inner colour.

Not certain how dark your java ought to be? There is not a"right" answer (after all, roast amounts are an issue of taste ). But when sample roasting, the coffee pros at Swiss Water target for variety 63 on the Agtron scale.

There's nobody rule for brewed each java, Aaron states, and similarly there's not any 1 rule for roasting every decaf coffee. Be somewhat milder with all the warmth and do not trust the outside bean color -- but keep in mind that, finally, you are not only roasting decaf coffee. You are roasting a Colombian Bourbon-Caturra mix, a Zambia Mafinga Hills, or even a Sumatra Mandheling. There's much more to some java than if it's been decaffeinated.

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