PROBLEM TO BE SOLVED: To provide a tea beverage or coffee beverage that has, while the caffeine content is sufficiently reduced, an appearance and flavor comparable as compared to conventional tea beverages.SOLUTION: Provided is: a method for producing tea beverage or coffee beverage comprising a step in which the tea extract or coffee extract is contacted with white clay satisfying a predetermined condition and a method for producing tea beverage or coffee beverage comprising a step in which the tea extract or coffee extract is contacted with the white clay satisfying the following condition. Condition A: the content of exchangeable calcium ion per white clay 1 g (dry weight) is 3 mg or less. Condition B: the pH of white clay when suspended in pure water at concentration of 2 wt.%, is 4.0 to 9.0.COPYRIGHT: (C)2015,JPO&INPIT【課題】カフェイン含量を十分に低減させつつ、通常の茶飲料と比較して遜色ない外観や香味を有する茶飲料およびコーヒー飲料の提供。【解決手段】茶抽出液またはコーヒー抽出液に所定の条件を満たす白土を接触させる工程を含む、茶飲料またはコーヒー飲料の製造方法。茶抽出液またはコーヒー抽出液に、下記の条件を満たす白土を接触させる工程を含む、茶飲料またはコーヒー飲料の製造方法。条件A:白土1g(乾燥重量)当たりの交換性カルシウムイオン含量が3mg以下、条件B:白土を2重量%の濃度で純水に懸濁したときのpHが4.0~9.0【選択図】なし
