Shigaraki ware
Reading しがらきやきAlso written 古信楽 (Ko-Shigaraki, pieces before 1573)
Stoneware from Shigaraki in Kōka, Shiga, made since the Kamakura period from coarse clay of the Old Lake Biwa Formation, rich in quartz and feldspar grains.
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Forms, use and context#
Wood firing gives a warm fire colour, natural ash glaze and scorching. Tea masters used its water jars and vases from the late 15th century, and its tea jars carried Uji tea to the shogun. A METI traditional craft since 1975 and one of the Six Ancient Kilns.
Body#
Clay from the Old Lake Biwa Formation (古琵琶湖層, sediments about 4 million years old), heat-resistant and workable for small and large pieces. Weathered granite and lake sediments with feldspar and silica; the body carries large quartz and white feldspar grains.153
Glazes#
| Glaze | 日本語 | Description | Sources |
|---|---|---|---|
| natural ash glaze (bidoro) | 自然釉（ビードロ釉） | Ash falling in the wood kiln melts with the clay into glass, a mark of old Shigaraki. | 1 |
| scorching | 焦げ | Parts buried in ash turn blackish brown. | 1 |
| fire colour | 緋色 | Warm reddish colour from the firing. | 15 |
| stone bursts | 石ハゼ | Feldspar grains melt or burst at the surface, leaving small white spots or holes. | 35 |
| 'crab's eyes' | 蟹の目 | Not yet verified: Named in the guidebook as a surface effect; Not yet verified definition from a source. | 5 |
Methods#
- Kilns Medieval tunnel kilns, then multi-chamber climbing kilns in the Edo period, which allowed mass production of hibachi, household goods and garden ware.53
- Clay preparation The Japan Heritage story says the kilns blend mountain clays and Lake Biwa-area clays (蛙目粘土, 木節粘土) and age clay for several years; it speaks of the six kilns generally.4
Typical objects#
term: water jar (水指 mizusashi; the guidebook names 鬼桶水指)term: waste-water jar (建水 kensui)term: flower vase (花入 hanaire)term: tea jar (茶壺)term: hibachiterm: tanuki figure
Periods#
- 742Emperor Shōmu built the Shigaraki palace (紫香楽宮) here in 742; tiles of that time survive but their kiln has not been found.1
- late Heian or Kamakura – KamakuraJAANUS: a distinct Shigaraki ware probably began in the late Heian. The Japan Heritage story says late Kamakura; the guidebook says mid-Kamakura under Tokoname's influence. Products: water jars, mortars, pots.
- late 15th century (Muromachi) – MomoyamaTea utensils made; JAANUS says Murata Jukō favoured Shigaraki jars, and names Sen no Rikyū, Furuta Oribe, Kobori Enshū, Katagiri Sekishū and Sen Sōtan among tea masters who valued the ware.
- 1632 – EdoShigaraki kilns became official makers of glazed tea jars used to send Uji tea to the shogun; Shiga prefecture links this to the Tarao clan's help to Tokugawa Ieyasu.
- late WWII – postwarMetal shortages raised demand; Shigaraki hibachi reached about 80% of the national market, then collapsed with oil stoves; production moved to planters, tiles and vases.1
- 1951 – presentTanuki figures lined an imperial visit route and became a symbol of the town.1
Kiln sites#
| Site | Period | Sources |
|---|---|---|
| 信楽焼窯跡群, 金山遺跡 1号窯 (listed in the guidebook; designation level not stated) | medieval | 5 |
Ambiguities#
- Start date differs: JAANUS says late Heian (probably), the Japan Heritage story late Kamakura, the guidebook mid-Kamakura; Shiga prefecture links the area to 742 palace tiles but says their kiln is unknown.3
- JAANUS's attribution to Murata Jukō is phrased as received tradition; treat as 'said to have favoured'.3
Heritage listings#
Sources#
Status and editorial notes draft
Sources are listed below. Their presence does not certify every claim; source-specific interpretations and unresolved questions are identified in the text. This page has not received independent expert approval.
- Named in the guidebook as a surface effect; Not yet verified definition from a source.
- Exact date Not yet verified.
- 2026-11-02: from the Shiga prefecture page, Kōka city page, JAANUS, the Japan Heritage story and the guidebook. Not yet verified: exact METI date; a museum object for a Ko-Shigaraki mizusashi (only modern living-artist objects surfaced, not used); designation level of the kiln sites; a source on present Shigaraki kyūsu/chawan making if any. Region id proposed. Native Japanese review needed: 古琵琶湖層, 石ハゼ (ishihaze), 蟹の目, 鬼桶水指 (onioke mizusashi), ビードロ, 多羅尾 (Tarao).
- Not yet verified: 2026-11-02: from the Shiga prefecture page, Kōka city page, JAANUS, the Japan Heritage story and the guidebook. Not yet verified: exact METI date; a museum object for a Ko-Shigaraki mizusashi (only modern living-artist objects surfaced, not used); designation level of the kiln sites; a source on present Shigaraki kyūsu/chawan making if any. Region id proposed. Native Japanese review needed: 古琵琶湖層, 石ハゼ (ishihaze), 蟹の目, 鬼桶水指 (onioke mizusashi), ビードロ, 多羅尾 (Tarao).