Image: Wikimedia Commons
Hatcho miso is a soybean miso from Okazaki City, Aichi Prefecture, made from only soybeans and salt, packed into wooden barrels, weighted with a conical pile of heavy stones, and aged for two years or more. The name comes from Hatcho village (present-day Hatchodori, Okazaki City), located hatcho — about 870 meters — west of Okazaki Castle. Blessed with groundwater from the Yahagi River and situated at a key point on the Tokaido road and waterway network, Hatcho village has been home to two miso breweries, Kakukyu and Maruya Hatcho Miso, which have brewed miso facing each other since the early Edo period; the miso's long shelf life is also said to have made it valuable as military provisions. It is defined by a distinctive flavor combining rich umami with a characteristic astringency and bitterness, and it forms the flavor foundation of Aichi's signature local dishes such as miso nikomi udon and Misokatsu.
Origin
The name Hatcho miso comes from Hatcho village (present-day Hatchodori, Okazaki City), located hatcho — about 870 meters — west of Okazaki Castle. The area is said to have flourished as a miso-brewing center thanks to abundant groundwater fed by the Yahagi River and its position as a key point on the Tokaido road and waterway network.
History
In the early Edo period, the Hayakawa Kyuemon family (today's Kakukyu) and the Ota Yajiemon family (today's Maruya Hatcho Miso) founded miso breweries in Hatcho village, and to this day they continue to operate facing each other across the old Tokaido road. Made from only soybeans and salt and capable of long-term storage, the miso is said to have been valued as provisions for Mikawa samurai. Both companies have preserved traditional methods dating from the Edo period while, at times competing and at times cooperating, spreading the reputation of Hatcho miso.
Features
Soybean koji is combined with salt and water, packed into large wooden barrels, and weighted with a conical pile of massive stones, then left to age naturally for two years or more. Unlike common miso made with rice or barley koji, this is a soybean-only 'mame miso' (bean miso), giving it a dark reddish-brown color and a rich umami combined with a characteristic astringency and bitterness.
Main Ingredients
Food Culture
Said to have been used as provisions for Mikawa samurai thanks to its long shelf life as a soybean miso, it later became widely used as the flavor foundation for Aichi's local dishes such as miso nikomi udon, Misokatsu, and dote-ni (simmered offal in miso). Today, some breweries offer factory tours, making it a tourism resource through which visitors can experience the region's food culture.
Famous Shops
合資会社八丁味噌（カクキュー）
愛知県岡崎市八帖町字往還通69番地
A long-established brewery said to have been founded in 1645. Offers a historical museum and paid tours of the aging cellars.
View details →株式会社まるや八丁味噌
愛知県岡崎市八帖町往還通52
A brewery said to have been founded in 1337, located in Hatchocho facing Kakukyu across the old Tokaido road. Also offers paid factory tours.
View details →FAQ
Q. How is Hatcho miso different from ordinary miso?
A. While ordinary miso is made with rice or barley koji, Hatcho miso is a 'mame miso' (soybean miso) made from only soybeans and salt. Aged for two years or more, it develops into a reddish-brown miso with rich umami and a characteristic astringency and bitterness.