Alex Lewin-a graduate of the Cambridge School of Culinary Arts and the Institute for Integrative Nutrition and author of Kombucha, Kefir, and Beyond and Real Food Fermentation-seeks to create a healthier and tastier world by spreading the word about fermentation and real food. He teaches fermentation classes and workshops and serves on the board of the Boston Public Market Association, working to create a year-round indoor market selling local food. He lives in Boston and San Francisco.

Raquel Guajardo runs a cooking school in Monterrey, Mexico, and has a business selling fermented beverages and foods.