If you ever need to recarbonate your plain sparkling water, you can. Just make sure that the water reaches the fill line on the carbonating bottle. If you've already prepared a drink with flavor, you cannot recarbonate. Always remember to always fizz water before adding any flavor.
Only water should be carbonated in the SodaStream Sparkling Water Maker. You risk damaging your Sparkling Water Maker, not to mention making a big fizzy mess! The money-back guarantee and the warranty are both invalidated if you carbonate any liquid other than water in your Sparkling Water Maker. Stick with plain, cold water and adding any one of our fantastic flavors AFTER the water has been carbonated!