PROBLEM TO BE SOLVED: To provide a catechin-rich beverage that is easy to drink by reducing the disagreeable tastes of catechin-rich beverage, such as bitter taste, stringent taste and astringent taste, the catechin-rich beverage being obtained by adding non-polymer catechins in high concentrations to beverage such as green tea beverage.SOLUTION: The catechin-rich beverage containing 0.08 to 0.2 mass% non-polymer catechins includes one or two kinds or more of enzymatically modified isoquercitrin, enzymatically modified rutin, and methyl hesperidin by 0.001 to 0.1 mass%.COPYRIGHT: (C)2013,JPO&INPIT【課題】緑茶飲料等の飲料に、非重合体カテキン類を高濃度添加した高カテキン含有飲料の、苦味、渋味および収斂味などの不快味を抑制し、飲み易い高カテキン含有飲料を提供する。【解決手段】非重合体カテキン類を0.08~0.2質量%含有した高カテキン含有飲料に、酵素処理イソクエルシトリン、酵素処理ルチンおよびメチルヘスペリジンの1種または2種以上を0.001~0.1質量%含有させる。【選択図】なし