Refreshing tonic flavour for sparkling water, with a balanced citrus note and classic quinine character. Each 440ml bottle makes up to 9 litres. Fizz, Mix, Enjoy! 1. Fill the SodaStream bottle with cold water and carbonate to your preferred fizz level. 2. Add the Tonic concentrate. 3. Mix gently and enjoy. For the recommended flavour, use approximately one cap of concentrate per litre of sparkling water. Refrigerate after opening and consume preferably within 30 days.