PROBLEM TO BE SOLVED: To provide a technique for producing a liquid fermented milk having properties suitable for drinking while containing high content of protein.SOLUTION: A method for producing a liquid fermented milk containing a protein content of 3.5 mass% or more includes: a fermentation product preparation step for preparing a formula liquid and fermenting the formula liquid to prepare a fermentation product a concentration step for concentrating the prepared fermentation product so that its protein content is higher than that of the liquid fermented milk, there by preparing a concentrated fermentation product and a dilution step for adding water to the prepared concentrated fermentation product to dilute it until its protein content is reduced to that of the liquid fermented milk, thereby preparing a diluted fermentation product.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】高たんぱく質でありながら、飲用に適した性状を有する液状発酵乳を製造する技術を提供することを課題とする。【解決手段】たんぱく質含量が3.5質量%以上の液状発酵乳の製造方法において、調乳液を調製し、該調乳液を発酵させて発酵物を調製する発酵物調製工程と、調製した発酵物を液状発酵乳のたんぱく質含量より高含量となるように濃縮して濃縮発酵物を調製する濃縮工程と、調製した濃縮発酵物に加水し、液状発酵乳のたんぱく質含量になるまで希釈して希釈発酵物を調製する希釈工程と、を含む。【選択図】なし
