also: かねつむら
uneven heating (of food)
Refers to hot and cold spots when heating food, especially in a microwave oven. Often used in cooking instructions and troubleshooting.
See also: むら
When heating in a microwave, stir halfway to prevent uneven heating.
この冷凍食品は加熱ムラが起きやすいので、表示時間より長めに温めたほうがいい。
This frozen food tends to heat unevenly, so it's better to heat it a little longer than the indicated time.
Hiragana variant; less common but still used.
Compound of 加熱 (かねつ, 'heating') and ムラ (むら, 'unevenness'). The katakana spelling ムラ is common in technical or culinary contexts.