Oke-Ei Round Wooden Bath Bowl

Bath Bowl · Yuioke · OKE-EI, Fukagawa, Tokyo

• 01 A round bath bowl, its staves joined by hand and bound with hoops — the traditional yuioke technique
• 02 Thicker at the base for durability, shaved gradually thinner toward the rim for a light, easy-to-handle bowl
• 03 Made solely from akata, the dense red heartwood of natural Kiso sawara cypress, rich in aromatic oils

A round wooden bath bowl, joined by hand

This small round oke is made with traditional yuioke techniques: thin wooden staves are joined by hand and bound with hoops.

In Japan, a round wooden oke like this is the classic bath bowl. It is used to scoop warm water from the tub and pour it over the body — part of the Japanese custom of rinsing off before stepping into the bath. The wood's natural oils and water resistance suit it to daily use in a wet bathroom, and its mellow fragrance rises with the warmth of the water.

Each stave is left thicker at the base, making the bowl more durable, and shaved gradually thinner toward the rim, keeping it light and easy to handle.

OKE-EI makes it solely from akata, the finest part of high-age natural sawara cypress from Kiso, grown in Japan's national forests: the red heartwood. Its growth rings are tightly packed and it holds a high proportion of natural oils, which give it antibacterial properties, water resistance, a mellow fragrance, a soft feel to the touch, and the ability to shed water cleanly.

The hoops are German silver, an alloy of copper, nickel and zinc long used for cutlery and other tableware. It is strong and resists rust and discoloration. Made slim yet thick, the hoops give the bowl a clean, sharp outline — an OKE-EI original.

The pure grain of OKE-EI yuioke

"I believe I am the only person still making these in Tokyo."

OKE-EI has continued the tradition of Edo-style yuioke — Japanese wooden vessels made from joined staves — in Fukagawa, Tokyo, for generations. The fourth-generation craftsman, Eifu Kawamata, is the final master to inherit these techniques at their highest level. His work has been supplied to the Imperial Household Agency and to Ise Jingu, among other shrines and temples, and in 2025 the techniques he holds were registered as an Intangible Cultural Property (woodworking) of Koto City, Tokyo.

The yuioke technique was established in Japan nearly 700 years ago. Thin wooden staves are arranged and bound with hoops — a form that has remained unchanged for centuries. Polished without paint or coating, the grain reads as something living rather than manufactured. The Fukagawa district where OKE-EI is based was once lined with hundreds of timber merchants; crossing the Eitai Bridge, the smell of wood filled the air. That world is largely gone, but OKE-EI remains.

80 steps, two years, ten years to master each stage

Yuioke-making is one of the most complex traditional crafts in Japan. From log preparation to completion, the process involves approximately 80 steps, and each piece requires at least two years to finish. Mastering every stage takes about ten years — a rarity that speaks to the depth of this skill.

The many tools of yuioke-making

"The essence of traditional yuioke is the joining of wood to wood — a precision that no factory process can replicate."
— Eifu Kawamata, fourth-generation master, OKE-EI