PROBLEM TO BE SOLVED: To provide a method for producing a blend tea beverage that uses at least cereal grain as a tea raw material and has suppressed bitter taste while it contains non-polymer catechin.SOLUTION: The method for producing a blend tea beverage using at least cereal grain including adlay as a tea raw material and containing non-polymer catechin comprises the steps (1) and (2):(1) a step of bringing the cereal grain including adlay into contact with water for washing and discharging the washing water in an amount of not less than 0.05 mass times to not more than 4 mass times relative to the total amount of the cereal grain brought into contact with water to produce washed cereal grain and (2) a step of bringing the tea raw material including the washed cereal grain in contact with water for extraction to obtain an extract.COPYRIGHT: (C)2014,JPO&INPIT【課題】穀物を少なくとも茶原料として使用し、非重合体カテキン類を含有しているにもかかわらず、苦味が抑制されたブレンド茶飲料の製造方法を提供すること。【解決手段】ハト麦を含む穀物を少なくとも茶原料として使用し、非重合体カテキン類を含有するブレンド茶飲料の製造方法であって、以下の工程(1)及び(2):(1)ハト麦を含む穀物に水を接触させて洗浄し、水を接触させた穀物の総量に対して0.05質量倍以上4質量倍以下の洗浄水を排出し、洗浄穀物を得る工程、及び(2)該洗浄穀物を含む茶原料に水を接触させて抽出し、抽出液を得る工程を含む、ブレンド茶飲料の製造方法。【選択図】なし
