Having extra carbonating bottles for your SodaStream Machine is a great way to keep a variety of drinks for your guests. This glass carafe is designed specifically for the Penguin and crystal machine owners. A special hermetic sealed cap ensures that you keep the carbonation in so your soda stays fresh and fizzy. Also use with other machines for soda storage and presentation. Bpa-free and dishwasher-safe. Compatible with SodaStream aqua fizz sparkling water maker.