A Storehouse Built for Rice, Kept for Soy Sauce
In 1907 the Miya family put up a new storehouse behind their shop in Sanuki, on the western edge of Chiba's Bōsō Peninsula. They built it to hold rice. It is small next to the larger buildings around it: two stories of thick plastered earthen walls in the dozō tradition, a grey-tiled gable, a footprint of just 47 square meters. The rice has long since gone. What fills the room now is rows of wooden barrels of soy sauce, slowly fermenting, which is how a building called the Former Rice Storehouse came to spend its working life storing something else entirely.
It belongs to Miya Shōyu-ten, a soy sauce brewery that has stood on this spot since 1834 and is still run by the same family. The storehouse sits just south of an older one, the waki-gura, one of nine historic buildings packed onto a single working lot. None of them is roped off. The Former Rice Storehouse is not a monument you look at from a distance; it is a piece of equipment that happens to be more than a century old.
Why a Working Storehouse Was Registered
This building is a Registered Tangible Cultural Property, not a National Treasure or an Important Cultural Property. The distinction matters. Japan created the registration system in 1996 for buildings worth protecting precisely because they are still in use (lived in, worked in, repaired and adapted) rather than preserved as untouchable relics. On 31 July 2007 the Former Rice Storehouse was entered on the register, together with eight other Miya buildings, under the criterion of contributing to the historic landscape of the country. Its registration number is 12-0076.
Part of what makes it worth keeping is hidden overhead. A storehouse of this date would ordinarily carry its roof on stacked timber beams. This one does not. Look up and the roof rests on a truss: the triangulated framing of Western carpentry that Japanese builders began grafting onto their own methods during the Meiji period. A small provincial granary raised in 1907 with a truss roof is a dated record of a particular moment, when a brewing family in a former castle town reached for an imported structural idea and used it under a thoroughly Japanese tiled roof.
Read in order, the nine registered buildings work almost like growth rings. The store-cellar (mise-gura) goes back to the late Edo period; the West Storehouse dates to 1872; the shopfront, side storehouse and main house went up in 1892; the Former Rice Storehouse and the East Storehouse followed in 1907; the rear storehouse in 1919; and a detached building in 1925. A single family business added a room at a time as it grew, and the additions are still standing in sequence.
What to Look For When You Visit
There is no ticket booth and no museum here. Miya Shōyu-ten is a shop with a working brewery behind it, and the cultural property is something you walk past on the way in. The first thing most visitors notice is in the car park: an outsized wooden brewing barrel set out like a signpost, the kind used inside the storehouses, deep and wide enough to stand in.
The shopfront itself, built in 1892, repays a slow look before you step inside. Its second-floor eaves use the projecting-purlin (degeta) construction typical of a prosperous Meiji merchant house, with carved decorative moldings on the boards that conceal the purlin ends, and a heavy lift-up shutter (age-do) at street level that the family still raises and lowers. Then there is the smell, which arrives before you reach the counter, the dark, malty depth of soy sauce that has been fermenting in wood somewhere just out of sight.
That fermentation is the reason to come. Miya is the southernmost soy sauce maker in Chiba, the prefecture that produces more soy sauce than anywhere else in Japan, and it works in a way most of that output does not. There is no artificial heating. The moromi mash ferments in tall wooden barrels through the natural swing of the seasons, which means the brewery can only start new batches at certain times of year and that some of its soy sauce is aged close to two years. If you ask, the family will often show you the brewing rooms; tours are free. Standing among the barrels in a building like the Former Rice Storehouse, with the smell and the cool of the earthen walls, is the closest you can get to understanding why these structures were worth registering rather than replacing.
Around the Brewery
Sanuki grew up as the castle town of the Sanuki domain, a small 16,000-koku fief in old Kazusa Province, and Miya Shōyu-ten was founded inside it. The earthworks of Sanuki Castle survive a short walk away for anyone who wants to trace the town's older layer. To the east rises Mt. Kano, one of the Bōsō Peninsula's best-known low mountains and a pleasant half-day from the brewery.
Miya soy sauce also reaches visitors before they ever find the shop. It flavors the jet-black broth of Takeoka-style ramen, counted among Chiba's three signature ramen styles and served at long-standing shops along the nearby coast. Inside the store you can buy the brewery's range directly: the standard Tamasa label, the nearly two-year tokusen, a sashimi soy sauce, the local natsukan citrus ponzu, plus moromi pickles and kinzanji miso. Most are inexpensive, and a 1.8-liter bottle costs only a few hundred yen.
- Sanuki Castle ruins — the earthworks of the former domain seat, within walking distance
- Mt. Kano — a popular peak on the inland Bōsō Peninsula
- Takeoka-style ramen — the local ramen tradition seasoned with Miya soy sauce
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Q&A
- Can I go inside the Former Rice Storehouse?
- It is a working soy sauce store, not an exhibit, so access depends on the brewery. The family offers free tours of the brewing areas, but it is best to ask at the shop or contact them in advance, since natural brewing only runs at certain times of year.
- Is the building really from 1907?
- Yes. The Agency for Cultural Affairs records the Former Rice Storehouse as built in 1907 (Meiji 40). The brewery itself is older, founded in 1834, and its buildings range from the late Edo period to 1925.
- What should I buy?
- The naturally brewed, additive-free dark soy sauce is the signature product. The long-aged tokusen grade and the natsukan citrus ponzu are popular souvenirs, and prices are modest.
- How do I get there?
- The shop is at the Sanuki intersection on National Route 127, about an 8–12 minute walk from Sanukimachi Station on the JR Uchibō Line, or roughly 4 minutes by car from the Futtsu-Chūō interchange on the Tateyama Expressway. There is parking for about ten cars.
Basic Information
| Name | Miya Shōyu-ten Kyū-kome-gura (Former Rice Storehouse of the Miya Soy Sauce Shop) |
|---|---|
| Location | 247 Nishi-shōseki, Sanuki, Futtsu City, Chiba Prefecture |
| Designation | Registered Tangible Cultural Property (Building); registration no. 12-0076 |
| Registered | 31 July 2007 (one of nine registered Miya buildings) |
| Built | 1907 (Meiji 40) |
| Structure | Two-story earthen-walled (dozō) storehouse; gabled, hira-iri; pantile roof; truss roof framing; building area approx. 47 m²; 5 × 2.5 ken |
| Owner | Privately owned (Miya family / Miya Shōyu-ten) |
| Current use | Soy sauce storehouse holding fermentation barrels; originally a rice storehouse |
| Access | Approx. 8–12 min walk from JR Uchibō Line Sanukimachi Station |
References
- National Database of Designated Cultural Properties (Agency for Cultural Affairs) — Miya Shōyu-ten Kyū-kome-gura
- https://kunishitei.bunka.go.jp/bsys/maindetails/101/00006519
- Chiba Prefecture — Cultural Properties: Miya Shōyu-ten Shop and Others
- https://www.pref.chiba.lg.jp/kyouiku/bunkazai/bunkazai/q111-074.html
- Miya Shōyu-ten (official site)
- https://www.miyashoyu.co.jp/
- Futtsu City Tourism Association — Miya Shōyu-ten
- https://www.futtsu-kanko.info/places/miyashoyu/
Last verified: 2026.06.20