noun
heat level; fire strength; condition of fire
Refers to the intensity or state of a cooking flame or heat source, often used when adjusting a stove or burner.
火加減を弱めて、10分ほど煮てください。
Lower the heat and simmer for about 10 minutes.
この料理は火加減が難しい。
This dish is tricky to get the heat right for.