PROBLEM TO BE SOLVED: To provide a sterilized food with white milk, whose milky taste is improved while the amount of raw milk material used is kept at not more than a predetermined amount, a method of improving the milky taste of the sterilized food with white milk, and a taste improver for food with white milk.SOLUTION: The sterilized food with white milk, which contains milk and/or a milk product and miso and/or acids in an amount effective to improve the milky taste of the food with milk, has an excellent milky taste regardless of the content of the milk and/or milk product since the food contains the miso and/or acids in an amount effective to improve the milky taste of the food with milk.COPYRIGHT: (C)2013,JPO&INPIT【課題】乳原料の使用量を所定量以下に抑えつつも、乳風味が向上された加熱殺菌済み白色系乳入り食品、加熱殺菌済み白色系乳入り食品の乳風味を向上させる方法、及び白色系乳入り食品用乳風味向上剤を提供すること。【解決手段】乳及び/又は乳製品と、乳入り食品の乳風味を向上させるのに有効な量の味噌及び/又は酸とを含む加熱殺菌済み白色系乳入り食品は、乳入り食品の乳風味を向上させるのに有効な量の味噌及び/又は酸を含むので、乳及び/又は乳製品の含有量に関わらず、乳風味に優れたものとなる。【選択図】なし