Scorching and impatience with

The kanji 焦 has a few meanings related to heat and burning:

Etymology

This kanji isa phono-semantic compound comprised of 火 (fire) as the semantic component and 隹 (abbreviated from 雥) as the phonetic component (ショウ).

Scorching

(To burn)

焦(こ)げる is for food or another thing to turn black or brown from too much heat.

Manga panel from しろくまカフェ bis showing example of Roast it properly with ちゃんと.
しろくまカフェ bis » Volume 3 » Page 43

Masaki’s dream job making coffee turns out to be nothing like he expected, as he’s put to work sorting out good beans from bad. When he finally has the chance to roast beans, he’s eager to use the fancy roasting machine, but he’s instead given a handheld coffee roaster to hold over a portable stove’s flame.

エゾリスA:
「ほらほら ちゃんと揺(ゆ)すらないと〜」
“Come on, come on. You have to shake it properly.”
エゾリスB:
「一部(いちぶ)だけ焦(こ)げちゃうわよ〜」
“Parts of it might get burnt.”
マサキ:
「うるさいなあ」
“Hush up!”
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Agitation

(To be in a hurry)

焦(あせ)る is to get flustered and rush because things are not going as planned.

Manga panel from レンタルおにいちゃん showing example of Hurrying is no good with あかん.
レンタルおにいちゃん » Volume 2 » Page 122

After transferring schools, Daigo tries to become friends with everyone. However, Makoto repeatedly ignores Daigo before finally saying not to talk to him. The other classmates tell Daigo not to bother with Makoto.

大五(だいご):
「まだまだこっから…!」
“There's still a long way to go.”
「焦(あせ)ったらあかん」
“If I hurry it's no good.”
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