堅かた炭ずみかたずみMeanings1nounhard charcoalRefers to a type of charcoal that is dense and burns slowly, often used for cooking or heating.堅かた炭ずみは火ひ持もちが良よいので、焼やき鳥とり屋やでよく使つかわれる。Hard charcoal is often used in yakitori restaurants because it burns for a long time.
