焦がす

1. Origins, structure, and basic meaning

• Structure: 焦がす, read こがす, is a transitive verb meaning to make something scorch or brown through heat.
• Basic usage: It is used both for accidentally scorching a pot and for heating sugar to develop color in cooking.
  • 話に夢中になり、鍋の底を焦がしてしまった。

2. Common pitfalls and similar expressions

• Intransitive 焦げる versus transitive 焦がす
  • 焦げる describes something becoming scorched, while 焦がす describes causing it to scorch. Their past forms are 焦げた and 焦がした, respectively.