Uonuma Jozo


The world's largest rice koji and amazake factory! Taste the healthy sweetness made from Uonuma water

Uonuma Jozo is one of the world's largest factories, producing fermented foods such as rice koji and koji amazake.
In addition to factory tours [reservation required], at the café "Uonuma Koji Salon" attached to the factory,
You can encounter flavors that can only be tasted here, such as koji amazake directly delivered from the factory and rich soft serve ice cream made with koji amazake.
In addition, there is a library that introduces fermented foods and a select shop that enriches your daily diet.
It is a popular spot that you can enjoy any weather condition.

General Information

DirectionsApprox. 20 min. from Koide Interchange on the Kan-Etsu Expressway
Approx. 10 min. from the Yamato Smart Interchange on the Kan-Etsu Expressway
Approx. 10 min. from Urasa Sta. on the Joetsu Shinkansen
Car ParkFree parking space
Opening Times10:00 am – 4:00 pm
Closed on Wednesdays and New Year holidays
Pricesfree(for entrance)
Notes【Factory tour admission】
● Admission : Please make a reservation from the phone or website.
●Factory tour reception hours: 10:30-/11:30-/13:00-/14:30-
●Accepted number of people: 1 to 20 people per group
● Reservation: Complete reservation system
●Fee: Free of charge
*The koji amazake soap making workshop requires advance reservations for up to 8 people, and costs 1,000 yen [tax included] per person.
*Koji amazake soap making workshop is a set with a factory tour. Participation in the workshop only is not available.


NameUonuma Jozo
Telephone Number0120-060-070