How Much Caffeine Is Starbucks Doubleshot?
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. How much caffeine in Starbucks Doubleshot Energy can? Starbucks Doubleshot Energy contains 9.00 mg of caffeine per fl oz (30.43 mg per 100 ml). A 15 fl oz can has a … Read more