Shino Tea Bowl (Hirosawa)

An Introduction to a Tea Bowl That Captures Moonlight

The Shino Tea Bowl "Hirosawa" is a half-cylindrical chawan (tea bowl) measuring approximately 8.4 centimeters in height and 12.3 to 12.5 centimeters in mouth diameter. Its body is wheel-thrown from a coarse, sandy white clay called mogusa-do, then thickly coated with a milky feldspar glaze that pools and breaks across the surface. Where the glaze runs thin — at the rim, at the foot, and along the lower body — the underlying clay flushes a soft pinkish-orange known as hiiro, or "fire color." Faint mountain shapes and interlocking-circle motifs (wachigai) painted in iron oxide hover beneath the white skin, half-revealed and half-concealed like reeds glimpsed through new-fallen snow.

The bowl belongs to the category of e-Shino, or "painted Shino," in which iron-pigment designs are brushed onto the clay before the white glaze is applied. It was almost certainly fired in the Ogaya kilns of present-day Kani City in Gifu Prefecture during the Momoyama period — most likely between the 1580s and the early seventeenth century, when the Mino kilns were producing some of the most adventurous tea ceramics Japan would ever see.

The Birth of Shino Ware: A Revolution in White

To understand why the Hirosawa bowl matters so deeply to the history of Japanese ceramics, one must first appreciate what Shino ware represented when it first appeared. Until the late sixteenth century, Japanese potters had struggled for generations to produce a true white-glazed pottery to rival the porcelain that arrived from China. The breakthrough came in the Mino region of present-day Gifu Prefecture, where kiln masters discovered that a thick, single-mineral feldspar glaze could yield a soft, snowy surface unlike anything ever fired in Japan before.

Shino was the first Japanese ceramic ware to feature freely brushed underglaze decoration — a quietly radical innovation. Painters dipped a brush into iron-rich pigment and drew flowers, grasses, bridges, and abstract patterns directly onto the clay, then sealed the drawing beneath the warm white veil of feldspar glaze. The aesthetic that emerged was utterly Japanese: warm rather than cool, gentle rather than perfect, alive with the small accidents of fire and earth.

For centuries, scholars believed Shino ware had been produced in the kilns of Seto in neighboring Aichi Prefecture. It was only in 1930 that the potter Arakawa Toyozo unearthed Shino shards at the Mutabora kiln site in Ogaya, Kani, definitively proving that this beloved ware had in fact been born in Mino. Arakawa later devoted his life to reviving the lost Momoyama-period techniques and was eventually designated a Living National Treasure for his Shino and Seto-guro work.

Why "Hirosawa" Was Designated an Important Cultural Property

Among the surviving Shino tea bowls of the Momoyama period, only a small handful are considered absolute masterpieces. The bowl known as "Unohana-gaki" (Hedge of Deutzia Flowers), housed at the Mitsui Memorial Museum in Tokyo, is the sole Shino tea bowl ever designated a National Treasure. "Hirosawa" stands in the very next rank — together with bowls such as "Hagoromo" (Feathered Robe), it is widely regarded as one of the finest expressions of the Shino tradition.

The Agency for Cultural Affairs designated "Hirosawa" an Important Cultural Property for several converging reasons. First, the technical accomplishment: the half-cylindrical form is wheel-thrown and then subtly distorted to introduce gentle, unforced rhythm — exactly the kind of restrained sakui (artistic intentionality) that Momoyama tea masters most admired. Second, the surface itself is among the most beautiful in all of Shino: the thick feldspar glaze is luxuriously moist rather than cold, and the soft fire-color blushes at the rim and foot give the entire bowl a palpable warmth. Third, the rare double-foot ring (nijū-kōdai) — a wide, flat foot with an inner circle carved deeper at its center — is exquisitely simple, with traces of the wooden trimming tool still visible in the rough mogusa clay. Together, these elements make "Hirosawa" not merely a beautiful object but a perfect embodiment of the wabi tea aesthetic.

Highlights to Look For When You Visit

When the bowl is on display, take time to slowly walk around the case. The Yuki Museum's intimate scale and quiet lighting allow visitors to study each work in unhurried contemplation.

• The "moonlit pond" surface — Notice how the thick glaze gathers into pools while the iron-painted motifs of mountains and interlocking circles emerge faintly through the white veil, like reeds glimpsed through mist.
• The fire-color flush — Look closely at the rim and the lower body, where the glaze grows thin. The soft pinkish-orange tone that emerges here is what gives Shino its characteristic warmth.
• The double-foot ring — If you can view the bowl from below, you will see the unusual nijū-kōdai: a broad outer ring with an inner well carved deeper at the center. The marks of the trimming tool remain.
• Three small spur marks inside — Three tiny scars from the firing supports remain visible in the well of the bowl, traces of how it stood inside the Momoyama-period kiln.
• The poetic name — The name "Hirosawa" evokes Hirosawa Pond in the Sagano district of western Kyoto, a celebrated moon-viewing spot praised in classical poetry by Saigyō, Minamoto no Yorimasa, and Matsuo Bashō. The bowl's gentle, expansive feeling was thought to capture the quiet grandeur of that famous landscape.

A Distinguished Lineage of Owners

Few tea bowls can claim a provenance as distinguished as that of "Hirosawa." During the Meiji era, the bowl was treasured by the Akaboshi family, one of the great tea-collecting houses of modern Japan. It then passed into the hands of Masuda Don'ō (Takashi), a Mitsui industrialist and one of the most important tea connoisseurs of the late nineteenth and early twentieth centuries, whose collection set the standard for modern tea aesthetics.

After the Second World War, the bowl was acquired by Yuki Teiichi (1901–1997), the legendary founder of the Kitchō restaurant — a man who devoted his life to elevating Japanese cuisine to the level of total art and was honored as a Person of Cultural Merit in 1988. Yuki saw cooking and the way of tea as the two great wheels of his life, and over more than fifty years he assembled a collection of tea utensils that today forms the heart of the Yuki Museum of Art, founded in November 1987.

About the Yuki Museum of Art

The Yuki Museum occupies the upper floors of a quiet building in Osaka's Hirano-machi, on the very site where Yuki Teiichi once operated his Kitchō restaurant. The museum is small — its galleries are designed in the spirit of a tea room, finished in jurakuhei earthen plaster and carrying the hush of a private chashitsu — and the collection is shown in rotation through three or four special exhibitions each year.

The full holdings include thirteen Important Cultural Properties and three Important Art Objects, ranging from Heian-period calligraphy fragments such as "Ishiyama-gire" and "Kōya-gire" to Kamakura-period Buddhist paintings and a celebrated Tang-dynasty chaire tea-leaf container known as "Shōō Nasu." Because the bowl "Hirosawa" is not on continuous display, visitors hoping to see it should check the museum's seasonal exhibition schedule in advance — a journey planned around its appearance is well worth the effort.

Around the Museum: Exploring Senba and Central Osaka

The museum sits at the heart of the historic Senba merchant district, only a short walk from Yodoyabashi Station on the Midōsuji subway line. After your visit, the surrounding neighborhood offers a wonderful introduction to old Osaka's commercial heritage and modern culinary life.

• Osaka City Central Public Hall — A short walk north toward Nakanoshima brings you to this beautifully restored Taishō-era brick building, an icon of early-twentieth-century Osaka architecture.
• Nakanoshima Park and the Museums — Nakanoshima Island, framed by two arms of the Dōjima and Tosabori rivers, is home to the Museum of Oriental Ceramics (currently celebrated for its outstanding East Asian porcelain collection) and the Nakanoshima Museum of Art.
• Osaka Castle — A roughly twenty-minute subway ride east brings you to the great castle of Toyotomi Hideyoshi, whose patronage transformed the Momoyama period into the artistic golden age that produced the very tea bowls displayed at the Yuki Museum.
• Kitchō Honten Koraibashi — For those wishing to experience Yuki Teiichi's culinary legacy directly, the historic Koraibashi branch of Kitchō continues to serve traditional kaiseki cuisine just a few minutes' walk from the museum.
• Dōtonbori — A subway ride south brings you to Osaka's most famous food and entertainment district, a lively counterpoint to the museum's contemplative atmosphere.