A cup of green tea has all over 28 milligrams (mg) of caffeine, which puts it a bit driving black tea’s 47 mg, in accordance with the Mayo Clinic. Even so, there is often loads of variation in caffeine articles based upon how tea is processed and brewed. Unsweetened https://www.goteaworld.com/arizona-green-tea-is-it-good-for-you-5-facts/