KOMBUCHA, KEFIR, AND BEYOND A FUN & FLAVORFUL GUIDE TO FERMENTING your own PROBIOTIC BEVERAGES at home ALEX LEWIN & RAQUEL GUAJARDO CONTENTS PREFACES 1 WHY FERMENT YOUR DRINKS? 2 OUR CULTURED HISTORY 3 FERMENTATION, SCIENCE, AND HEALTH 4 BEFORE YOU START 5 FIVE-MINUTE RECIPES 6 STARTERS, MASTER RECIPES, AND GENERAL PRINCIPLES 7 KOMBUCHA AND JUN 8 VEGETABLE DRINKS 9 SODAS 10 BEERS, GRAINS, AND ROOTS 11 WINES, CIDERS, AND FRUITS (AND VINEGAR!) 12 MEXICAN PRE-HISPANIC DRINKS 13 FERMENTED COCKTAILS RESOURCES ABOUT THE AUTHORS RECIPE DIRECTORY INDEX PREFACES RAQUEL GUAJARDO I WAS BORN and raised in Monterrey, Nuevo León, an industrial town surrounded by mountains in the north of Mexico that is well known for its carne asada, cabrito, tortilla de harina, and beer. As a proud regiomontana, I have always loved beer, but I didn’t associate it with fermentation, and never in my wildest dreams could I have imagined myself brewing my own. For me, fermentation started in Seattle, Washington, during a Real Food Cooking Course taught by Monica Corrado. Among other things, she taught me how to make sauerkraut and the principles of fermentation. She recommended the book Wild Fermentation by Sandor Katz, and soon I was hooked on everything fermented. Then, two years ago, I invited Sandor to teach a workshop in Monterrey. More people got hooked, and I got inspired to experiment and come up with my own recipes. Then I invited Alex to teach another fermentation workshop in Monterrey, on kimchi and the science of fermentation. During his stay, he tasted a couple of my fermented beverages, and I am pretty sure he enjoyed them. After all, the idea for this book was born in my kitchen as we drank pulque and tepache. ALEX LEWIN I GREW UP in the Northeast of the U.S., in New York, Connecticut, and Massachusetts. I started thinking and reading about food and health when I was in my 20s. One book would say one thing, another book would say something different and incompatible, and both would have good justifications for what they said. I was curious by nature, and at the time I hated unsolved mysteries, so I started reading more. This led me on a path of discovery informed by Andrew Weil, Sandor Katz, Sally Fallon, the Institute for Integrative Nutrition, the Cambridge School of Culinary Arts, and many more. In fact, my views are informed by almost everyone I talk with about health and food. And I have made my peace with unsolved mysteries—there will always be some things that we don’t know, and I’m okay with that. Fermentation, especially with wild starters, depending as it does on invisible forces and serendipity, is a great stage on which to dance with the unknown. I speak for both Raquel and myself when I say that we’ve enjoyed being learning partners together. Our skills and perspectives and communities are similar in so many ways, and complementary in so many others; working together has been fun and enlightening. We are all stronger when we work together, embracing difference, diversity, the unfamiliar, and the unknown. Do not let misguided demagogues suggest otherwise. We hope that you enjoy this book that we’ve brewed up for you. Salud! CHAPTER ONE WHY FERMENT YOUR DRINKS? We are in the midst of a health crisis—or, to put it another way, a disease crisis. For proof, just turn on the television. You’ll be exhorted to buy diabetes maintenance equipment; cholesterol-lowering drugs with significant side effects; digestive nostrums that blunt unpleasant symptoms without addressing underlying causes; allergy pills that suppress the immune system; painkillers; and more. The interspersed commercials are for sugary drinks, junk food, and toxic personal care and cleaning products, the use of which likely contributes to conditions such as diabetes, cardiovascular disease, digestive problems, and allergies. Sound familiar? It doesn’t seem like this is a complete coincidence. Love it or hate it, advertising is a reliable bellwether: The commercials we see are the ones that sell product and make money. Super Bowl commercials, for example, are the caviar of the domestic advertising world. Guaranteed millions of viewers, these ads cost 10 million dollars per minute. Yet during the 2016 Super Bowl, we saw an ad for a drug to address a very specific malady that many of us had never considered: opioid-induced constipation. Opioids are opium-derived and opium-related drugs, including a long list of prescription painkillers and street drugs. If we were a nation of healthy people, we’d be seeing different commercials. Mexico finds itself in the same boat as the United States. It is one of the world’s most obese countries with one of the highest infant diabetes rates. American fast food chains and supermarkets have been crowding out mercados, where fresh seasonal food used to be found. For the younger generations, buying American fast food is part of the modern way of life, cool and hip, like having a cell phone, whereas the typical grandma foods such as pozole, tamales, and mole are old-fashioned. Even the tortilla, the hallmark of Mexican food, has changed for the worse, and sadly, traditional tortillerías are disappearing. As the United States goes, so go not only her American neighbors, but much of the world. With the expansion of markets for big-business food and tobacco products comes diabetes, heart disease, obesity, cancer, and chronic digestive and immune system dysfunction. And these maladies create new markets for pharmaceutical products. Are drugs really the best way to break this cycle? Maybe fermented beverages can help. WHAT IS FERMENTATION, ANYWAY? Fermentation is the transformation of food through the action of microbes. Microbes are microscopic life forms, including bacteria, yeasts, and molds. (Viruses are sometimes considered microbes. They have no metabolism, so they aren’t direct agents of fermentation, and they won’t be discussed here.) Via chemical reactions, these microbes transform carbohydrates (sugars and starches) into acids, alcohols, and gases. Along the way, small but useful amounts of vitamins and enzymes are created too. Digestion refers to processes in living organisms that break down food into various components. Digestion is generally accelerated by heat and catalyzed by special proteins called enzymes. Enzymes are employed by all life forms, from microbes to mammals. In fact, it turns out that many of the same enzymes used by microbes are also found in the human digestive tract. This is not a coincidence—many of our gut enzymes are created by microbes that live there. These enzymes play a crucial role in human digestion. These enzymes also play a crucial role in fermentation, which happens when microbes use them to start breaking down food. These microbes are effectively predigesting our fermenting food, in some of the same ways that we ourselves digest food inside our bodies, using some of the same enzymes. So when we eat fermented foods, we are getting ahead of the game; these foods are easier for our bodies to digest. This may help us to better assimilate important nutrients from the food—we have more time to break down compounds that could inhibit nutrient uptake. It may also reduce difficult-to-digest and inflammatory compounds, so we face fewer signs of digestive difficulties such as gas, bloating, acid reflux, and heartburn. This helps us to mitigate, avoid, and sometimes reverse chronic long-term digestive diseases. As by-products of metabolism and digestion, some microbes create meaningful amounts of B and C vitamins. Some microbes also create other, more obscure human nutrients, including some whose functions we are still learning about and some that we may never know about or understand. Additionally, many of the products of fermentation promote health, stave off disease, and/or actively reverse some types of health problems in humans and other bigger creatures. This is particularly the case when small amounts of minerals or organic materials, such as herbs, are included in the fermenting process. We are only beginning to understand some of the substances and mechanisms involved. EAT REAL FOODS Food science does not necessarily prioritize the discovery of new food nutrients —there’s much more incentive to invent new industrial processes that save time and money, or to create new flavorings for potato chips and fast food. From the point of view of human health, food science advances slowly, sometimes taking two steps forward and one step back. Unfortunately, that means the messages that reach consumers about what they should or shouldn’t eat may not be focused on what would help them maintain robust health. Because food science isn’t focused on nutrition, it’s worth our while to seek out real foods—foods that are close in form to how they occur in nature, processed in the home kitchen, with trace compounds intact. Industrially processed foods almost always lose nutritional value during processing; even if they look okay on paper, they are often stripped of poorly understood or unknown trace compounds. Their production process serves the food producers first and the public second or third or not at all. Consider the story of Soylent: In 2013, a pair of young entrepreneurs were creating tech products that they hoped would change the world. Because they wanted to maximize the time they spent working on their projects, they were frustrated that it took so long to select, procure, prepare, and eat food. So they