SodaStream Waters Zeros Sparkling Drink Mix is naturally flavored and contains no calories. With no sugars, aspartame or sucralose and no preservatives, SodaStream Waters Zeros offer a better-for-you alternative. Each bottle makes 36 servings (9 liters) of flavored sparkling water. Creating your own flavored sparkling water at home has never been easier! Simply carbonate water with your SodaStream Sparkling Water Maker (sold separately), add your favorite flavor and enjoy!