Provided is a production method whereby, in a fat or oil product etc., an increase in the content of glycidol and the like of a fat or oil can be inhibited even though a deodorization step is conducted under high-temperature conditions. A method for producing a fat or oil according to the present invention is characterized in that a step for deodorizing a fat or oil is conducted under the following conditions: contacting the fat or oil with steam for 30-180 minutes at a temperature exceeding 230oC and at a degree of vacuum of 150-700 Pa in a tray of a tray-type deodorizing device and the amount of the steam being 3.0-8 mass% relative to the fat or oil in the tray.提供一種油脂的製造方法,該製造方法即便於高溫條件下進行脫臭步驟,也能抑制油脂製品等的油脂中的去水甘油等成分之增加。夲發明的油脂的製造方法,其特徵在於包含以下述條件來進行油脂的脫臭步驟,該條件為:於超過230℃的溫度條件下,以150~700Pa的真空度,於托盤式脫臭裝置的托盤中,使油脂與水蒸氣接觸30~180分鐘,且上述水蒸氣的量,相對於上述托盤中的油脂為3.0~8質量%。
