Saké, the fermented beverage made from rice, water, yeast, and koji, was and is traditionally made in Japan.  Today, however, it’s also produced in many countries, including the U.S. Most saké is water white in color, dry, with an alcohol content of 15-18%. Saké begins with drying and polishing the rice grains to remove the outer layer, leaving just the starch core. The rice is then washed and steamed, and the koji mold converts starch to sugar. The rice is then mixed with water, and yeast is added to convert sugar to alcohol through fermentation.