Published 30 April 2019 12:17 What is the caffeine content in your Energy Drink mix? Is is the same across all of your caffeinated flavors? The Energy Drink has 80mg of caffeine per 8oz serving. Other SodaStream caffeinated flavors contain 31 mg per 8oz serving. Related articles Do your flavor syrups contain aspartame? Do your Fruit Drops flavors contain sucralose? The fruit flavor ingredients say "natural ingredients". What does that even mean? Sparkling Water Maker Comparison Guide What is essentially vegan friendly?