Otone Sake Brewery

A Sake Brewery Located at the Base of Oze and Surrounded by the Okutone Mountains, Striving to Brew the Sake that the Owner and Head Brewer Would Drink Himself

Sake Brewery

Oze is a place rich in the bounties of nature, with clean air, clear flowing water, and the Okutone mountains standing around it. Located at the base of Oze is the Otone Sake Brewery. The brewery has its roots in the middle of the Edo period, originally founded in 1902 as Otone Sake Brewery. Its sake brand “Oze’s Sadaijin” is named after a nickname given to Saburo Oze, a master of both the literary and military arts in the late Heian period.

The storehouse was initially sold by the army, and it has a high ceiling and the same truss structure (a construction method that allows for a large space without needing pillars in the center of the building) as Tomioka Silk Mill, a designated World Heritage Site. Otone Sake Brewery stands inside such an interesting historical building, and yet tours of the brewery are available for free, allowing visitors a glimpse into the mysterious world of sake brewing. The sake brewing lectures by its owner and head brewer are also popular, offering up new bits of knowledge each time, so repeat visitors are not an uncommon sight.

Among the varieties of sake produced at Otone Sake Brewery, the most recommended is their “Sadaijin Junmaishu,” featuring a refreshing flavor while maintaining the umami and sweetness of the rice, making it a perfect mealtime drink. The flavors of sake also change depending on its serving temperature, so be sure to try it both cold and hot.


  • A small sake brewery located at the base of Oze and surrounded by the Okutone mountains.
  • The storehouse was built using the same truss structure as the World Heritage Site Tomioka Silk Mill.
  • Free sake brewery tours available (duration 30+ minutes).
  • Phone reservations at least 3 days in advance are required for the sake brewery tour.


  • Owner and head brewer Mr. Tomonori Abe with a bottle of “Sadaijin Junmaishu”
  • The building’s structure was designed to block UV rays and allow for temperature control using a skylight, making it ideal for storing sake
  • Cast iron pot for steaming rice. Edo period (1603-1868) tools have been arranged for active use
  • The type of rice used and the amount that it is polished varies depending on the sake it is to be used in
  • Compare Junmai, Junmai Ginjo, Junmai Nama Genshu, and other varieties on the sake brewery tour
  • The “sakebayashi,” a ball of green Japanese Cedar leaves bundled together, signals when new sake is ready


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Name in Japanese
Postal Code
1306-2 Shirasawamachitakahira, Numata City, Gunma
1) About a 30-minute drive from the Joetsu Shinkansen’s Jomo-Kogen Station
2) About a 15-minute drive from the Numata Interchange of the Kan-Etsu Expressway
Official Website
Official Website (Japanese)