Does Dark Roast Coffee like this have more caffeine per cup? null

Question

John · Accepted Answer

No. The way one measures coffee determines caffeine level outcome. It comes down to VOLUME vs. WEIGHT:

As beans are roasted, they lose water and puff up slightly. The longer the roast time the more pronounced these effects. Dark roasted beans weigh less (and are slightly larger) than light roast beans. Lightly roasted beans are roasted for less time making them denser, smaller, and heavier than dark roast. As a result, each particle (volume) of ground light roast contains more caffeine than a particle of ground dark roast. When ground beans are measured by VOLUME, the light roast ground coffee contains more coffee and weighs more than the dark roast grinds, thus producing a more caffeinated brew. 

Another way to visualize this is to use popcorn as an example. An un-popped kernel is equivalent to a light roast; a popped kernel is like a dark roast. As the popcorn kernels are heated (roasted) the moisture (water) inside causes the kernel to dramatically expand and pop. Moisture is lost as steam resulting in a roasted popcorn kernel that weighs less and is larger than an unroasted popcorn kernel. When measured by VOLUME a cup of unroasted popcorn contains far more more kernels and is heavier than an equal cup of popped popcorn.

The bottom line: When measuring by VOLUME, you’ll end up with more a greater caffeine buzz with a light roast than with a dark roast. Measuring by WEIGHT, however, gives virtually equal caffeine levels.

dayo · Answer

Actually, it's the other way round--lighter roast typically has more caffeine, b/c the heat and length of time at high heat required to produce dark roast destroys or degrades the caffeine. The roast is all about the flavor and frankly, when you're drinking a very dark roast or "French roast" you're tasting the roast more than the coffee. I personally like it that way, but when I want that caffeine bump or just a lighter more "flavorful" cup, I go to a medium roast and freshly fine ground from fresh beans.

Answered by dayo 7 years ago

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LisaL · Answer

It depends on what you’re comparing it to. Compared to a light roast, yes. They also make decaf.

Nnnnnana · Answer

Actually I read that the darker its roasted the more caffeine that is removed. No.

CookinginGA · Answer

Dark roast coffees generally have a bit less caffeine than regular roast coffees. It certainly goes against what we think about strong-tasting coffee,

Carolshep64 · Answer

There's a common misconception that dark roast has more caffeine than light roast because it's darker. Other folks believe that light roast has more caffeine than dark roast because caffeine is lost when beans are roasted. Both of those schools of thought are wrong because all roasts of the same bean have basically the same amount of caffeine.

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Quante · Answer

No it does not.

Stangirl · Answer

Not necessarily. Most blonde or lighter blends have more caffeine surprisingly then our darker roasts.

BigdoubleA · Answer

I think usually dark roast has less caffeine content, but in my opinion better taste. Your lighter roasts will typically contain more caffeine per cup. This could also vary between manufacturers!

jimF · Answer

No has less then breakfast blend, the roasting process burns off some of the caffeine

maxbennettjr · Answer

Yes this is a bold coffee. My favorite.

Vette · Answer

I brought this for my daughter. She likes stronger coffee and I like light roast. But I hear that light coffee has more caffeine

Duke4550 · Answer

No more caffeine than usual, just a deeper great taste.

GaryMacMac · Answer

Dark roast coffee doesn’t have more caffeine then medium roast. 
It’s dark because it’s roasted longer. 
If anything it may have less caffeine.

“Does Dark Roast Coffee like this have more caffeine per cup?”

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