How much caffeine is in espresso? How about drip coffee?
That’s a tough question. First of all, before roasting, a coffee bean has a caffeine content of somewhere between one percent and one and a half percent. So there’s some variation to be expected. However, you can expect to find about 100 mg of caffeine in a shot of espresso, and about 130 mg of caffeine in a cup (around 8 oz) of coffee. The caffeine content in drip coffee varies more than espresso because espresso is generally made with a very dark roast, whereas the roast, grind, filter, etc. tend to vary with drip coffee.
