Making water kefir is great for people who enjoy carbonated beverages but would rather have probiotics than artificial flavor and color. These grains are different from milk kefir grains, but they also make an excellent drink. And it's vegan!
Water kefir is another probiotic beverage that can easily replace unhealthy soda. It is very simple to make and can be flavored in a multitude of ways. A second fermentation is great for increasing carbonation.