The Freshest Japanese Sake
In the Japanese sake brewing process, most sakes have to be pasteurized twice. The sake that didn't go through pasteurization process is called "Nama Sake (生酒)," which is the freshest Japanese sake.
Because Nama Sake did not go through pasteurization, the quality is easy to change by heat. Nama Sake has to be stored and delivered by cold chain. Nama Sake is hard to find, even at department stores, supermarkets, and sake bottle shops in Japan. Nama Sake is rare and a limited edition for sake breweries.
