跳はね炭ずみ

noun

exploding charcoal

Refers to charcoal that pops or sparks when burned, often due to trapped moisture or air pockets. A somewhat specialized term used in contexts like traditional charcoal making or camping.

• 跳はね炭ずみは火ひの粉こが飛とぶので、取とり扱あつかいに注ちゅう意いが必ひつ要ようだ。

  Exploding charcoal sends out sparks, so it must be handled with care.

• 昔むかしながらの炭すみ焼やきでは、跳はね炭ずみができることもある。

  In traditional charcoal making, exploding charcoal can sometimes be produced.