Published April 12, 2019 18:20 What is essentially vegan friendly? Our SodaStream flavors are Kosher Parve, to the best of our knowledge none of the ingredients we use originate from animals. Related articles Are any of your flavors vegan? The fruit flavor ingredients say "natural ingredients". What does that even mean? Do your flavor syrups contain aspartame? Do any of your flavors contain Stevia? If I want to carbonate my water and store it for later, how long can I expect it to store before going flat?