PROBLEM TO BE SOLVED: To provide a method of producing at a stable rate a tea extract solution from plural kinds of teas by controlling floating of these tea materials.SOLUTION: There is provided the method of producing a tea extract solution: by preparing three or more kinds of tea materials, in layered form, onto a tea-holding plate mounted in a column type extraction machine and by supplying water for extraction thereon to discharge the tea extract solution therefrom, which prepares one of the tea materials on the top layer other than the ones with the maximum and the minimum values in the wet density by comparing the wet densities of the three or more kinds of tea materials.COPYRIGHT: (C)2011,JPO&INPIT【課題】複数の茶原料を用い、抽出時における茶原料の浮遊を抑制して安定に茶抽出液を製造すること。【解決手段】カラム式抽出機内に装着された茶保持板上に3種以上の茶原料を層状に仕込み、該抽出機内に抽出用水を供給して茶抽出液を排出する茶抽出液の製造方法であって、3種以上の茶原料のそれぞれの濡れ密度を比較し濡れ密度が最大値及び最小値である茶原料を除くいずれか一の茶原料を最上層に仕込む、茶抽出液の製造方法。【選択図】なし
