Koji Alchemy

Book excerpt: Koji Alchemy guides readers through the history and diverse application of koji, the microbe behind the delicious, umami flavors of soy sauce, miso, mirin, and so much more. Devoted authors Jeremy Umansky and Rich Shih share processes, concepts, and recipes for fermenting and culturing foods with this magical ingredient. Then they take it to the next level by describing how they rapidly age charcuterie, cheese, and other ferments, revolutionizing the creation of fermented foods and their flavor profiles for both chefs and home cooks. Readers will learn how to grow koji, including information on equipment and setting up your kitchen, as well as detailed concepts and processes for making amino sauces and pastes, alcohol and vinegar, and using it for flavor enhancement with dairy, eggs, vegetables, and baking. With the added tips and expertise from their friends, Umansky and Shih have developed a comprehensive look at modern koji use around the world.