
Each 8-ounce cup of Matcha, made with Matcha powder and water, contains 76 to 180 milligrams of caffeine. Compare that to an 8-ounce cup of green or black tea, which has 30 to 50 milligrams, and an equally sized cup of coffee, which has 80 to 100 milligrams, according to the U.S. Food and Drug Administration.