PROBLEM TO BE SOLVED: To provide technique for heightening the storage stability of thick milk having high milk solid concentration, and provide a thick milk having excellent palatability and storage stability.SOLUTION: In producing a thick milk, the sucrose fatty acid ester, the succinic acid monoglyceride, and the distillation monoglyceride are added to the milk raw material, and further the casein sodium is added so that the casein content in a thick milk is larger than 80 mass% to 100 mass% milk protein.COPYRIGHT: (C)2014,JPO&INPIT【課題】乳固形分濃度が高い濃厚乳の保存安定性を高める技術を提供し、嗜好性及び保存安定性に優れた濃厚乳を提供する。【解決手段】濃厚乳の製造において、乳原料に、ショ糖脂肪酸エステル、コハク酸モノグリセリド、蒸留モノグリセリドを添加し、さらにカゼインナトリウムを、濃厚乳中のカゼイン含有量が乳蛋白質100質量%に対して80質量%より大きくなるように添加する。【選択図】なし