Kouchi Shuzo, established around 1883 in Kochi Prefecture, brews Niyodogawa using water drawn directly from the Niyodo River in every stage of production. The Niyodo River has been ranked Japan's cleanest river by the Ministry of Land, Infrastructure, Transport and Tourism eight times in ten years, earning it the name 'Niyodo Blue' for its extraordinary clarity. This celebrated water, sourced from one of Japan's last pristine river systems, defines the clean, light character of the brand.
