How Much Caffeine Is In A Can Of Starbucks Doubleshot Espresso?
A 15-ounce can of starbucks doubleshot energy has 135 milligrams of caffeine, while a 6.5-ounce can of Doubleshot espresso has 120 milligrams of caffeine. Is 120 mg of caffeine a lot? According to the Mayo Clinic, most healthy adults can safely consume up to 400 mg of caffeine each day. But while most 12-ounce cups … Read more