@yoasif @vkc

I don't think you're joking, I'll join that line

@coffeegeek @coffee

Fascinating... Thanks for sharing your work, and for the clarification!

@coffeegeek @coffee so just to clarify, dark roast has more caffeine by weight, but because it "puffs" more it takes up more volume and thus you end up with less caffeine in the brewed cup?

Is that where the idea of "light roast has more caffeine than dark roast" comes from, that you get more light roast coffee in each volume-measured serving?