steaming basket; traditional steamer
A traditional steaming vessel, historically made of clay or wood, used to steam food over a pot. Often seen in historical or culinary contexts.
See also: せいろ
In old kitchens, they steamed rice using a koshiki.
steaming vat (for sake rice)
Only with reading こしき
Specifically a large steaming vat used in sake brewing to steam rice. Reading is restricted to こしき.
In sake brewing, the step of steaming rice in a koshiki is crucial.
Standard kanji form for the traditional steaming vessel.
The kanji 甑 is a traditional character for a steaming vessel. The reading こしき is native Japanese, while そう is the Sino-Japanese reading. The exact historical derivation is uncertain.