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KATAGUCHI-YA is located in Imizu city in the center of Toyama prefecture. Yasunosuke Kataguchi founded KATAGUCHI-YA in 1830. He spread a brewing method of dark soy sauce that he learned in Edo throughout the Hokuriku region where only the Kansai-style light soy sauce had been available. After that, he started brewing miso. In addition to modern fast brewing methods, we also focus on naturally brewed products using only domestic rice, Toyama soybeans and natural ingredients.