How to say "heating" in Japanese
- 加熱かねつnoun, suru verb, transitive verbThe common, general word for heating as the application of heat: heating food in cooking, or heating materials in a laboratory or industrial process. When you just mean 'heating' something, this is the word.
- 加温かおんnoun, suru verbHeating as warming: raising the temperature of something, as in warming a greenhouse or a liquid. Less common than 加熱.
- 加熱処理かねつしょりnounHeating as a treatment step: heat treatment, typically of food or materials in processing. Choose it when 'heating' refers to a treatment applied to a product, not to the act of heating itself.
- 昇温しょうおんnoun, suru verb, transitive verb, intransitive verbA rise or increase in temperature rather than the act of heating: it suits technical descriptions where the temperature is going up. Seldom the word for heating something.
- 火入れひいれnounA less common word whose dictionary meaning is given simply as 'heating'. It is not a general equivalent of the English word; unless it is the established term in your own context, 加熱 is the safer choice.
Use 加熱, the common word, for applying heat to food or materials; 加温 for raising something's temperature, 加熱処理 for heat treatment, 昇温 for a rise in temperature, and 「火入れ」 only rarely.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


