- Add the Kefir Soda Starter packet OR kefir whey to your juice and stir till dissolved. 
- Add juice mixture, cinnamon stick, orange peel, lemon peel, and apple peel into a thick 32-ounce bottle with a clamp-down lid (a funnel can be helpful). (Make sure you use bottles such as Grolsch or Bormioli thick glass bottles. Bottles bought at craft stores can explode.) 
- Fill the rest of the bottle with water leaving an inch of room at the top. 
- Allow it to ferment for 3-5 days or until bubbly and fizzy. If your home is 75°F or warmer, it will take usually 3-4 days. Colder homes can take 5 days to a week or longer, but you'll need to check it by popping the top to see if it's getting fizzy. It will start to bubble out the top if it does. 
- When it's done, place it in the fridge right away. You can pour into a glass and enjoy right away, but keep it stored in the fridge or it will explode. Consume within 1-2 weeks for the best flavor and most benefit.