Why is coffee so hard to digest? Our advice : If you suffer from acid indigestion or a heavy feeling in your stomach after a coffee, or if a cup of coffee makes you agitated, while you are otherwise healthy in body and mind, then go over this checklist of questions about the quality of the coffee you have been drinking: 1. Are you sure that the blend does not contain other varieties than high-grown Arabica varieties with a naturally low caffeine content? 2. Is the coffee roasted mildly (and not burnt to a sweating black mass)? 3. Are you sure that no fat, sugar, water, or aromatic substance was added during roasting? Koffie Kàn guarantees that all these conditions are met.