How much caffeine does Starbucks Doubleshot energy have? (Caffeine levels in Starbucks Doubleshot Energy + More information)

How much caffeine does Starbucks Doubleshot energy have

Starbucks offers two almost similar Doubleshot drinks: the Doubleshot energy and the Doubleshot espresso. The main difference between these two is the caffeine level, so “How much caffeine does Starbucks Doubleshot energy have” 9 mg of caffeine per fl. oz which translates to 135mg of caffeine in a can of 15 fl. oz. I didn’t … Read more