To provide: a beverage in which the harsh taste that is generated when blending indigestible glucan in a beverage is improved; a method for producing said beverage; and a method for improving harsh taste.SOLUTION: Provided are: a beverage containing indigestible glucan, mineral, and lactic acid, and in which the content of the lactic acid is 120 to 800 ppm in sourness degree; and furthermore, a beverage in which the content of lactic acid is 120 to 200 ppm in sourness degree, or a beverage in which the content of mineral is 5 to 1000 ppm with respect to the whole beverage.SELECTED DRAWING: None【課題】飲料に難消化性グルカンを配合した際に生じるえぐ味が改善された飲料、当該飲料の製造方法及びえぐ味を改善する方法の提供。【解決手段】難消化性グルカンと、ミネラルと、乳酸と、を含み乳酸の含有量が、酸味度で120~800ppmである、飲料。さらには、乳酸の含有量が、酸味度で120~200ppmである、飲料、または、ミネラルの含有量が、飲料全体に対して、5~1000ppmである、飲料。【選択図】なし