Lupulus wrote:Being new to espresso, I am still getting my technique down and pulling several shots in a row in order to analyze taste and play with variables. Without thinking about it this morning, I drank four shots in a row. I didn't feel any different than if I had had my regular french press coffee, which got me to wondering about caffeine. In order to make the four shots, it didn't take a lot more whole beans than I would have used to make a 16oz travel mug with the french press. Thus, is the caffeine content similar? Or, because of the finer grind of espresso does that method extract more caffeine than brewing? Is it the other way around for some reason?