Horaiya Honten was established as in 1906 as has remained in business for over 100 years as a producer of koji. Koji is rice that has been fermented using a mold called Aspergillus oryzae, and it is a key ingredient in many of Japan’s traditional fermented food products, such as miso, mirin (alcoholic seasoning used in stewed dishes), sake, amazake (traditional sweet beverage made using rice koji, rice, and sake lees), and pickles. During the tour, you will see the inside of the factory and learn how miso paste is made. Guides speak in Japanese and English to teach everyone from small families to large tour groups about the benefits of miso. At the end of the tour, you can shop for koji products while enjoying amazake from Horaiya. Miso is also available to take home as a souvenir.
*Participants must be at least 4 years of age
- Opening Times
- Weekdays 9:30am - 5:00pm
Tours held once per day (1 group only), Monday-Friday between 9:30am - 3:00pm
- Weekends and public holidays
- 1 hour 30 minutes
- Held in small groups of 1-20 people.
*Please consult with us if your group is larger than 20 people.
COVID-19 Prevention Measures: Limiting or guiding visitors, providing hand sanitizing equipment, wearing masks, ventilating indoor spaces, performing temperature checks, disinfecting used areas, etc.
- Horaiya Honten Co., Ltd.
- Telephone Number