I didn’t realize how much until I started figuring it up. I’d get up 5 in the morning and start and not stop until I went to bed at 12 at night was working seven days a week and had been for about a year. The total cups were probably around 25 or 30 a day as I was drinking out of a thermos mug. I was also getting caffeine from other food sources as well don’t remember all but had a list that the doc had given me at the time. The damn job and the coffee almost killed me. Took a little over 5 months to get rid of the excess caffeine. I still love my coffee but tow cups a day limit along with two glasses of sweet tea.