Does Starbucks Doubleshot Energy Have More Caffeine Than Monster?

Secondly, starbucks doubleshot energy has almost as much caffeine as the original monster and Rockstar (146 mg per can compared to 160 mg in Monster and Rockstar Original). Does Monster or Starbucks have more caffeine? Consumer Reports found that monster energy contained 92 milligrams of caffeine per 8-ounce serving ; that compares to 100 mg … Read more