PROBLEM TO BE SOLVED: To provide a method for preparing a catechin-containing beverage the microbial contamination of which is suppressed though catechin is contained plentifully therein and which has high preservability and a good flavor.SOLUTION: The catechin-containing beverage is obtained by adding a predetermined amount of a bitter/astringent taste improvement component to a beverage which contains catechin and a black tea extract and the pH of which is 5.7-6.3. The content of the bitter/astringent taste improvement component in the catechin-containing beverage is 0.15-0.225 mass%. When the content of the catechin is defined as X and that of the black tea extract is defined as Y, the following inequalities are satisfied. 160 mg/100 mL≥X>；120 mg/100 mL, 30 mg/100 mL≥Y≥2.5 mg/100 mL and (X+Y)>；140 mg/100 mL.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】カテキンが豊富に含有されているにもかかわらず、微生物汚染が抑制されて保存性が高く且つ風味のよいカテキン含有飲料の製造方法の提供。【解決手段】カテキン及び紅茶抽出物を含有する飲料は、ｐＨ５．７～６．３であり、且つ所定量の苦渋味改善成分、カテキン、及び紅茶抽出物を含むカテキン含有飲料。飲料中の苦渋味改善成分の含量が０．１５～０．２２５質量％であり、該カテキンの含量がＸ、紅茶抽出物の含量がＹのとき、１６０ｍｇ／１００ｍＬ≧Ｘ＞１２０ｍｇ／１００ｍＬ、３０ｍｇ／１００ｍＬ≧Ｙ≧２．５ｍｇ／１００ｍＬ、且つＸ＋Ｙ＞１４０ｍｇ／１００ｍＬである、カテキン含有飲料の製造方法。【選択図】なし
