Founded in 1912, Kamoizumi Shuzō Brewery is one of the newer breweries in the famed sake-making region Saijo. During the late 1960s, when almost all sakes available on the market were sanzo-shu, sake that is fortified with brewer's alcohol (distilled alcohol), Kamoizumi Shuzō Brewery pioneered junmai brewing techniques by created a traditional junmai sake made only with rice and rice koji. It was also common practice during this time to filter the pressed sake through charcoal to remove any impurities to attain a pure and colorless sake, the aesthetic ideal of the times.