PROBLEM TO BE SOLVED: To provide a caffeine-containing beverage in which excess bitter taste (harsh taste) of caffeine is naturally reduced without giving foreign taste.SOLUTION: There is provided a beverage comprising caffeine of 100 ppm or more, wherein the beverage comprises (A) mono-galactosyl diglyceride and (B) di-galactosyl diglyceride satisfying (i) (A)+(B)=1.3-12.0 μg/ml and (ii) (A)/(B)=0.90-4.0, and further (A)=0.8-8.0 μg/ml. The beverage which is a container-filled tea beverage comprising a tea extract liquid, and a tea extract comprising (A) mono-galactosyl diglyceride and (B) di-galactosyl diglyceride is also provided.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】カフェイン含有飲料であって、異味を与えることなく、カフェインの過度の苦味（エグ味）を自然に低減した飲料の提供。【解決手段】（Ａ）モノガラクトシルジグリセリド及び（Ｂ）ジガラクトシルジグリセリドを、（イ）（Ａ）＋（Ｂ）＝１．３～１２．０μｇ／ｍｌ（ロ）（Ａ）／（Ｂ）＝０.９０～４．０を満たすように配合した、１００ｐｐｍ更に（Ａ）＝０．８～８．０μｇ／ｍｌ以上のカフェインを含有する飲料。茶抽出液と、（Ａ）モノガラクトシルジグリセリド及び（Ｂ）ジガラクトシルジグリセリドを含有する茶抽出物とを含む容器詰め茶飲料である、前記飲料【選択図】なし
