the science of the nerves and the nervous system, especially of the diseases affecting them. Origin of neurology. 1675-1685.
Quick Answer. The ratio of coffee to cups brewed is 1 tablespoon of ground coffee for a 6-ounce cup and 2 tablespoons of coffee for a 12-ounce cup, so 8 cups would require about 1.5 tablespoon scoops of ground coffee, depending on the serving size. This amount makes a regular strength brew.
An eight-ounce cup of decaf coffee would have no more than five or fewer milligrams (mg) of caffeine (compared to the range of 40 to 180 mg typically found in one eight-ounce cup of brewed, dripped, or percolated java). Your concern over the safety of decaffeinated coffee probably stems from solvents used in the past.