... unclear; however, the earliest written reference to use of alcohol in Japan is recorded in the Book of Wei, of the Records of ... purpose. There were at least 80 types of sake rice in Japan. Among these, Yamadanishiki, Gohyakumangoku, Miyamanishiki and Omachi rice ... purpose. There were at least 80 types of sake rice in Japan. Among these, Yamadanishiki, Gohyakumangoku, Miyamanishiki and Omachi rice ...