sakrilege

Is the amount of caffeine in coffee affected by the strength of the roast? I've started getting expresso roasted beans because I like a really strong coffee and am wondering if I am upping my caffeine intake in the process.

Toto

At one point I was told by a coffee roaster that the darker roasts have less caffeine, because the roasting process destroys some (which makes some sense if you think about it.)

I think that the method of preparation has more to do with the strength than the roast. Some methods extract more caffeine from the beans.

But it's been a while since I've drunk coffee.

Kinross

As a coffee roaster:

Darkness of the roast has no effect on the amount of caffeine. Caffeine content is determined by the type of bean.

Caffeine decomposes at 237 C while coffee beans are roasted at 200 C so there is no loss due to roasting.

It is a common misconception that an expresso has more caffeine. A shot of expresso has the same a mount of caffeine as a cup of coffee, just more per volume.

Some beans and the caffeine content

Brazil Bourbons 1.20%
Celebes Kalossi 1.22%
Colombia Excelso 1.37%
Colombia Supremo 1.37%
Costa Rica Tarrazu 1.35%
Ethiopian Harrar-Moka 1.13%
Guatemala Antigua 1.32%
Indian Mysore 1.37%
Jamaican Blue Mtn/Wallensford Estate 1.24%
Java Estate Kuyumas 1.20%
Kenya AA 1.36%
Kona Extra Prime 1.32%
Mexico Pluma Altura 1.17%
Mocha Mattari (Yemen) 1.01%
New Guinea 1.30%
Panama Organic 1.34%
Sumatra Mandheling-Lintong 1.30%
Tanzania Peaberry 1.42%
Zimbabwe 1.10%
Colombia Supremo Dark 1.37%
Espresso Roast 1.32%
French Roast 1.22%
Vienna Roast 1.27%
Mocha-Java 1.17%

Just Another Infidel

So, ugh, like, where can I score some of this Peaberry stuff dude?


JAI

Kinross

Pst...

over here