Adding your bubly drops is easy! 1. Pick your favorite bubly drops 2. Carbonate fresh, cold water with your SodaStream Sparkling Water Maker. Add flavor only after carbonating your water. 3. Pour the drops into your SodaStream carbonating bottle. We recommend starting by adding ¾ of a teaspoon of your chosen bubly drops flavor to your 1L Carbonating Bottle of sparkling water and then adjusting to your taste. 4. Gently shake your SodaStream carbonating bottle to mix the bubly drops. 5. Enjoy your homemade bubly sparkling water!