Nagayamahonke Shuzojo sits above Japan's largest limestone cave in Ube, Yamaguchi Prefecture, where groundwater flows over rock layers formed from a coral reef roughly 250 million years ago, absorbing minerals that give the sake a distinctive minerality. Brewmaster Takahiro Nagayama launched the Taka brand with a deliberate focus on terroir, and the high calcium content of the water translates directly into the firm, acidic, and mineral-driven character that defines every bottle.
