To solve the problem that there is a possibility that oil and fat at position 2 rich in palmitic acid that is a raw material of an oil and fat composition containing XPX triglyceride at position 2 bonded to palmitic acid and positions 1 and 3 bonded to X is crystallized when a reaction temperature is low to lead to a trouble such as reactor blockage (X: unsaturated fatty acid or saturated fatty acid having 10 or less carbon atoms).SOLUTION: A cloud point of a raw material mixture can be set at 39.5°C or lower by being mixed with specific raw material fatty acid or its lower alcohol ester, and even when a reaction temperature is low, crystal deposition does not occur.SELECTED DRAWING: None【課題】２位にパルミチン酸、１，３位にＸが結合したＸＰＸトリグリセリドを含む油脂組成物の原料となる２位パルミチン酸含量の高い油脂は、反応温度を低くすると結晶化し反応器閉塞などのトラブルを招く可能性がある。（Ｘ：不飽和脂肪酸又は炭素数１０以下の飽和脂肪酸） 【解決手段】特定の原料脂肪酸又はその低級アルコールエステルと混合することで原料混合物の曇り点を３９．５℃以下とすることができ、反応温度がたとえ低くても結晶析出が起こらない。【選択図】なし
