Caleb Warnock, the author of the bestselling Backyard Renaissance Series, provides the most understandable and important look at the health benefits of water kefir to date. Using his decades of self-sufficiency experience, Caleb makes making kefir simple and easy enough for anyone to have success brewing their own water kefir. Includes information on: Water kefir grains The history of water kefir Health benefits Simple step-by-step instructions Recipes Frequently asked questions.