The soy sauce made here is pale. Tatsuno is a castle town that prospered on brewing, and white-walled storehouses and townhouses stand along the Ibo River through it. What the town produced was usukuchi — light-coloured soy sauce — used in the cooking of Kyoto and Osaka precisely because it seasons without clouding the colour of what it is added to, which matters a great deal in some kitchens and not at all in others.

Producing that paleness requires a different brewing procedure rather than merely a shorter one, and at the local museum the difference can be read directly off the arrangement of the equipment, which is a more convincing explanation than any label. Tatsuno was designated an Important Preservation District in December 2019, which puts it among the recent additions to the list. Hon-Tatsuno station is within walking distance of the district, Himeji is a little over twenty minutes away by train, and there is work in brewing and in manufacturing close enough that people live here and stay.

The colour of a soy sauce is a statement about which market it was made for. A district producing dark soy and a district producing pale soy are aiming at different dishes and different customers, so they have been running quite separate businesses under a single word for several centuries. Tatsuno was oriented toward the old capital, and it stayed that way. That orientation is not recorded in any document here so much as in the product itself, which remains lighter in colour than what is brewed further east, and is bought by people who want it that way.