How much caffeine in coffee and tea?
One espresso shot (1 fluid ounce) of coffee on average is around 100mg. This can vary depending on how the beans are produced, level of the grind and the amount of water/coffee ratio. Drip coffee – 110 to 165mg per 5 ounce cup or 140ml (most common coffee measurement) Percolated coffee – 64 to 134mg per 5 ounce cup Instant coffee – between 40 to 108mg per 5 ounce cup Decaffeinated coffee – between 2 and 5 mg per 5 ounce cup Black tea (loose leaf) – 25 to 110mg per 8 ounce cup or 225ml (most common tea measurement) Oolong tea (loose leaf) – 12 to 75mg per 8 ounce cup Green tea (loose leaf) – 8 to 70mg per 8 ounce cup White tea (loose leaf) – 6 to 55mg per 8 ounce cup Tea bags – check packaging for exact caffeine measurements Dark chocolate bar (average) – 30mg per 1.5 ounce or 43 grams Milk chocolate bar (average) – 10mg per 1.5 ounce or 43 grams Coca Cola – 34mg per 12 fl oz or 335ml Red Bull (energy drink) – 80mg per 8.2 fl oz or 250ml *Please note – These coffee and tea figures have
