Published September 12, 2018 15:02 Should I refrigerate my Sparkling Drink Mix? It depends on the type of drink mix - we're all different, right? For flavor specific storage instructions check the printed instructions on the bottle. As a general rule, they should be kept in a cool dry place or refrigerated. Related articles What is the shelf life of SodaStream's Sparkling Drink Mixes? How long will my sparkling water last before going flat? How do you get a CO2 refill when there are no exchange stores in the area? How can I make the best sparkling water ever? Do any of your flavors contain GMOs?