caffeine in black tea vs coffee
尋找MUCH TEA AND COFFEE資訊的人也對caffeine in black tea vs coffee感到興趣，以下是MUCH TEA AND COFFEE的靠北餐廳情報，Tea has more caffeine in it per mg. See, tea leaves have around 3.5% caffeine in them whereas unbrewed coffee beans have only around 1.1-2.2% caffeine.