Wajima: The Lacquer Built to Be Mended

Most crafts are sold on how they look. Wajima is sold on how it survives. The town at the tip of the Noto Peninsula makes what is widely held to be the toughest lacquerware in Japan, and it gets there by doing something no other lacquer town does: it grinds up fossils and puts them under the shine.

A town at the end of the peninsula

Wajima sits at the northern edge of Noto, in Ishikawa — far enough out that for most of its history the sea was the road. Lacquerware and lacquering tools have been excavated there from as early as the Kamakura period, and the oldest surviving piece the town points to is a vermilion-lacquered door from the Muromachi period. The craft recognisable as Wajima-nuri today — the specific undercoat, the specific sequence — took shape in the early Edo period, and by the end of it, Wajima bowls were in kitchens the length of the country.

The ware is made in Wajima City and essentially nowhere else, for a reason that comes out of the ground.

The fossil in the undercoat

Under a Wajima bowl’s glossy black surface is a layer that has nothing glossy about it. It is called jinoko, and it is diatomaceous earth — the compacted remains of microscopic algae — quarried at Mount Komine in Wajima, roasted, and crushed to powder. Mixed with raw lacquer, it makes a paste that dries to something closer to stone than to varnish.

The ground is built up in grades. The coarsest powder goes on first, then progressively finer ones over several rounds, each dried and sanded flat before the next. This is honkataji, the “true hard ground,” and it is the whole argument for Wajima: the piece is given a skeleton before it is given a skin. What you eventually see — the deep, even lacquer surface — is a thin final layer sitting on a structure that took months to build.

Wajima’s own producers describe jinoko as an insulator as much as a reinforcement, which is why a Wajima soup bowl can hold something near boiling and still be comfortable in the hand.

Cloth where it breaks

The second defence is simpler and, once you know about it, visible in the silhouette. Before the ground goes on, cloth is glued down with lacquer over the places that fail first — rims, foot rings, corners. It is called nunokise, cloth-covering, and it turns the weakest points of a turned wooden bowl into the strongest. Run a thumb around the lip of a good Wajima bowl and you can sometimes feel the slight extra thickness where the fabric sits.

Counting the hands

Wajima’s numbers are unusual enough that the industry keeps quoting them. The Agency for Cultural Affairs, in its record of the designated technique, describes lacquering alone as running to some thirty processes; the trade’s own count of the total hand operations involved is more than twenty coating stages and somewhere between 75 and 124 passes in all, depending on the piece. The local cooperative reckons a single object takes anywhere from six months to several years to complete — much of that simply waiting, because urushi does not dry by evaporating. It cures, slowly, and it wants humidity to do it.

Nobody does all of this alone. The work splits into three domains — the wooden base, the coating, and the decoration — and subdivides again into around nine specialised trades: bowl turners, benders, joiners, ground-coaters, middle-coaters, polishers, finishers, and the two decorative disciplines. Holding it together is the nushiya, the lacquer master who acts as producer: commissioning the wood, moving the piece from workshop to workshop, and selling the result.

That last part mattered more than it sounds. From the Edo period the nushiya travelled the country themselves, calling on customers directly rather than waiting for a merchant; goods also moved on the kitamaebune, the coastal trading ships. In the 18th century they added sales through kō — subscription groups, in which members pooled money and received their lacquerware in turn. It is said to have worked much as credit does now: a household could own a set of Wajima bowls long before it could afford one outright. Demand rose sharply, and so, under the pressure of it, did quality.

Gold in the cuts

Two decorative traditions sit on top. Chinkin, perfected in Wajima in the 18th century, is subtractive: the artisan incises fine lines into the cured lacquer with a chisel, fills them with lacquer, and presses gold leaf or powder into the cuts. The image emerges from below the surface rather than on it, which is why chinkin reads as light caught in a scratch rather than as paint. Maki-e, gold and silver powder sprinkled onto wet lacquer, came to Wajima later, from Kanazawa and Kyoto.

Wajima-nuri was designated a traditional craft of Japan on 10 May 1975, and its technique was designated an Important Intangible Cultural Property on 25 April 1977.

1 January 2024

At 4:10 in the afternoon on New Year’s Day 2024, a magnitude 7.6 earthquake struck the Noto region. Wajima City recorded a seismic intensity of 7, the top of the Japanese scale. A fire broke out afterwards in Kawai-machi and burned through the district around the city’s famous morning market. Workshops, tools, drying rooms, stock and homes were lost together, because in Wajima they were usually the same building.

Recovery has been slow and is not finished. Temporary workshops were built; artisans who had evacuated began returning in stages; the Wajima-nuri Kaikan, damaged but standing, reopened part of itself within months. Some makers have not resumed, and it would be dishonest to write about the craft in 2026 as though the industry were whole. What can be said is that the work is being done again, in smaller rooms than before.

Bringing Wajima home

Everything about Wajima’s construction assumes a long life, including one detail worth knowing before you buy: it is designed to be repaired. A chipped rim or a worn surface can be re-lacquered by the trade and returned close to new. That is not marketing — it is the practical consequence of a ground layer that outlives the finish.

Day to day, treat it as you would any fine urushi. Wash by hand in warm water with a soft sponge and a little mild detergent, rinse, and dry with a cloth straight away rather than leaving it to stand. Keep it out of the dishwasher and the microwave entirely, don’t leave it soaking, and store it away from direct sun and from radiators — lacquer dislikes prolonged dryness and UV more than it dislikes use. Used regularly, the surface deepens rather than degrades.

Read: Yamanaka, the town that turns the wood that lacquer towns depend on, or our guide to the lacquered miso soup bowl. Or browse hand-picked, Japan-shipped tableware on The Table.

Sources & Further Reading

• WAJIMA Nuri (Lacquerware) — Traditional Crafts Aoyama Square — The national traditional-crafts association: the Muromachi-period vermilion door, jinoko from Mount Komine, cloth reinforcement, repairability, and the 10 May 1975 designation.
• 輪島塗 — Cultural Heritage Online (Agency for Cultural Affairs) — The Important Intangible Cultural Property designation of 25 April 1977, and the thirty-process description of the lacquering itself.
• 輪島塗について — Wajima Lacquerware Trade Association (輪島漆器商工業協同組合) — The producers’ own account: jinoko as insulator, nunokise, the nine specialised trades, the role of the nushiya, and the six-months-to-several-years timeline.
• The 2024 Noto Peninsula Earthquake — Japan Meteorological Agency — The official record: 4:10 p.m. on 1 January 2024, magnitude 7.6, and seismic intensity 7 in Wajima City.