Jeolgu

Jeolgu and gongi
Wooden jeolgu (mortar) and gongi (pestle)
Hangul	절구
Hanja	n/a
Revised Romanization	jeolgu
McCune–Reischauer	chŏlgu
IPA	[tɕʌl.ɡu]
Hangul	공이
Hanja	n/a
Revised Romanization	gongi
McCune–Reischauer	kong'i
IPA	[koŋ.i]

Jeolgu (절구) and gongi (공이) are a type of traditional Korean mortar and pestle set, used for pounding grains or tteok (rice cake). They can be made with timber, stone, or iron.Jeolgu is a bowl-shaped vessel in which grains or tteok can be pounded, and gongi refers to either a pestle for a mortar or a stamper for a stamp mill.