Sue pottery

Sue pottery (須恵器, sueki^?, literally offering ware) was a blue-gray form of high-fired pottery which was produced in Japan and southern Korea during the Kofun, Nara, and Heian periods of Japanese history. It was initially used for funerary and ritual objects, and originated from a Mongol people who came from Korea to Kyūshū. Although the roots of Sueki reach back to ancient China, its direct precursor is the grayware of the Three Kingdoms of Korea.

The term Sue was coined in the 1930s by the archaeologist Shuichi Goto () from a reference to vessels mentioned in the 8th century Japanese classical poetry anthology Man'yōshū. Previous to this, the terms iwaibe doki (祝部土器^?) or Chosen doki were in more common use.

Sue pottery is believed to have originated in the 5th or 6th century in the Kaya region of southern Korea, and was brought to Japan by immigrant craftsmen. It was contemporary with the native Japanese Haji pottery, which was more porous and reddish in color. Sue ware was made from coils of clay, beaten and smoothed or carved into shape, and then fired in an oxygen-reduction atmosphere of over 1000 °C. The resulting stoneware was generally unglazed, but sometimes displays an accidental partial covering of ash glaze, which melted in drips onto the ceramic pieces' surfaces as they were being fired.

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