Basically, sake comprises rice, water, and the fermenting agent called koji, resulting in an alcoholic level that usually sits between 13 and 16 percent. And you might be interested to know that the rice used is different from the standard table rice so popular with Japanese food. Ken Gargett takes a deep dive into what sake is, what types of sake are available, and whether you should drink it warm (like James Bond) or cold. Kampai!