ceramicsJuly 31, 2026

Akazu-yaki

Akazu-yaki (赤津焼) is a ceramics tradition produced in the Akazu district, located east of the urban area of Seto City, Aichi Prefecture. It is classified as a type of Seto-yaki and was designated as a national traditional craft product by the Minister of Economy, Trade and Industry in 1977.

History

The Akazu kiln is said to have been established during the Heian period, making it one of the older ceramic traditions within the broader Japanese ceramics landscape. Archaeological evidence of this longevity is preserved in the Konagaso ceramics kiln site, a kiln ruin from the Muromachi period that remains in the Akazu area.

During the Sengoku period, a sharp decline in kiln houses — known as Seto-yama Risan — occurred in Seto, and many kilns relocated to the Mino region. Recovery came in the early Edo period: in 1610, the revival of the Seto kilns is traditionally attributed to the first lord of the Owari Domain, Tokugawa Yoshinao, who is said to have gathered potters in the then Akazu village for this purpose. However, more recent research based on existing materials suggests it was Tokugawa Ieyasu, not Yoshinao, who called the kiln houses back, coinciding with the founding of Nagoya.

In 1616, potters from Akazu were summoned to Nagoya Castle, and a kiln was constructed within the Ofukai-maru enclosure. This kiln became known as Bishu Oniwa-yaki (the Owari Domain garden kiln) and operated until it was abolished following the dissolution of feudal domains in 1871. Through service at the Oniwa-yaki, the technique of Annan-style gosu (cobalt blue) painting — not previously found in Akazu-yaki — was transmitted by Chen Yuanyun, and a glaze derived from this period is still known today as Ofuke-yu (Ofukai glaze).

In 1807, Kato Tamikichi introduced porcelain manufacturing methods to Seto. However, this technique did not take root in Akazu, and the tradition has continued to focus primarily on earthenware (toki) to the present day. In 1980, the Akazu-yaki Kaikan was built at 94-4 Akazu-cho, Seto City, Aichi Prefecture, for the purpose of preserving research materials and folk materials related to Akazu-yaki.

Techniques & Production Process

Akazu-yaki is distinguished by a broad repertoire of glazing and decorative methods that have been preserved across generations. The tradition encompasses seven types of glazes: ash glaze, iron glaze, Ko-Seto glaze, Ki-Seto glaze, Shino glaze, Oribe glaze, and Ofuke glaze. In addition, twelve types of decorative techniques have been passed down within the tradition. The Ofuke glaze, in particular, traces its lineage directly to the Oniwa-yaki kiln at Nagoya Castle and the Annan-style gosu cobalt blue painting technique transmitted by Chen Yuanyun. The focus on earthenware rather than porcelain distinguishes Akazu-yaki from other Seto-area ceramic traditions that adopted porcelain production after 1807.

How to Identify Akazu-yaki

Akazu-yaki can be identified by the range of its characteristic glazes, which include ash, iron, Ko-Seto, Ki-Seto, Shino, Oribe, and Ofuke finishes. The use of earthenware clay bodies, rather than porcelain, is a defining material characteristic. As a local architectural reference point, the exterior walls of the Akazu-yaki Kaikan are covered with Oribe-glaze ceramic tiles, offering a visible example of the Oribe glaze tradition associated with the craft.

The Craft Today

Akazu-yaki has maintained its status as a nationally designated traditional craft product since 1977. As of February 2010, there were 14 certified traditional craftsmen (Dentō Kōgeishi) working in the Akazu-yaki tradition. The Akazu-yaki Kaikan, established in 1980 in Seto City, continues to serve as a center for the preservation of research and folk materials related to the craft. Production remains centered on earthenware, continuing a specialization that has defined the tradition since the wider adoption of porcelain in the Seto region in the nineteenth century. Akazu-yaki is among the ceramic traditions produced in Aichi Prefecture, a region that also includes Tokoname-yaki, another nationally designated craft from the same prefecture. Works may be viewed at Dentoukougei Aoyama Square (8-1-22 Akasaka, Minato-ku, Tokyo), which is operated by the General Foundation for the Promotion of Traditional Craft Industries and is open daily from 11:00 to 19:00, except during the New Year holiday period.

Frequently Asked Questions

What type of ceramic is Akazu-yaki?

Akazu-yaki is a type of earthenware (toki) produced in the Akazu district of Seto City, Aichi Prefecture. It is classified as a form of Seto-yaki. Although porcelain manufacturing methods were introduced to Seto in 1807, they did not take root in Akazu, and the tradition has focused on earthenware to the present day.

When was Akazu-yaki designated as a traditional craft?

Akazu-yaki was designated as a national traditional craft product by the Minister of Economy, Trade and Industry in 1977.

What glazes are used in Akazu-yaki?

Akazu-yaki employs seven types of glazes: ash glaze, iron glaze, Ko-Seto glaze, Ki-Seto glaze, Shino glaze, Oribe glaze, and Ofuke glaze. The Ofuke glaze derives from techniques associated with the Oniwa-yaki kiln at Nagoya Castle.

How old is the Akazu kiln tradition?

The Akazu kiln is said to have been established during the Heian period. A kiln ruin from the Muromachi period, the Konagaso ceramics kiln site, remains in the Akazu area as physical evidence of the tradition's long history.

Where can Akazu-yaki be seen or purchased?

Works designated as Akazu-yaki traditional craft products can be viewed at Dentoukougei Aoyama Square, located at 8-1-22 Akasaka, Minato-ku, Tokyo 107-0052, which operates daily from 11:00 to 19:00 except during the New Year holiday. The Akazu-yaki Kaikan, located at 94-4 Akazu-cho, Seto City, Aichi Prefecture, also preserves materials related to the craft.