also: クヌギずみ
noun
sawtooth oak charcoal
Charcoal made from sawtooth oak (Quercus acutissima), valued for its long burning time and high heat, often used in traditional Japanese cooking and heating.
くぬぎ炭は火持ちが良く、焼き鳥屋でよく使われる。
Sawtooth oak charcoal burns long and is often used in yakitori restaurants.
茶会ではくぬぎ炭を炉に入れた。
At the tea gathering, sawtooth oak charcoal was placed in the hearth.
Compound of くぬぎ (sawtooth oak) and 炭 (charcoal). The reading ずみ is a rendaku form of すみ.