A route connecting Osaka and Hokkaido via the Sea of Japan was active from the latter half of the 18th century to the beginning of the 20th century. The Kanaiwa and Ono areas prospered as a port town on the route in Kanazawa.
In the Ono area, in particular, soy sauce has been manufactured from salt and soybeans carried by ship and subsoil water taken from the area and supporting the taste of Kaga cuisine.
Still now, approximately 40 companies are engaged in soy sauce manufacture in the Ono area, and people can see a row of soy sauce storehouses unique to this area. Some soy sauce storehouses have been modified and used as galleries or tearooms.