types of caffeinated tea
Black teas are fully oxidized teas. Black teas brew a liquor from reddish brown to dark brown. They are the most popular type of tea in the Western world. Black teas range from 40 â 60 milligrams of caffeine per 8 oz cup.
The names of Japanese green teas generally end in cha (meaning tea). Preparation of green teas requires pure water at 175Â° F. (Boil, then cool 3 mins) Chinese green teas contain about 30â35 milligrams of caffeine per 8 oz cup, and Japanese green teas contain 25â30 milligrams of caffeine per 8 oz cup.