PROBLEM TO BE SOLVED: To provide a method for producing a coffee drink by which peculiar taste and harsh taste are reduced, but the flavor is not changed.SOLUTION: The coffee drink packed in a container is produced by: subjecting roasted Columbia beans to medium grinding inserting the ground beans into a column extractor continuously draining extracted solution from the lower part of the column extractor while feeding ion-exchanged water at 95°C from the upper part of the extractor diluting the extracted solution with the ion-exchanged water to afford a solution of a coffee composition radiating fine bubbles of nitrogen by a pressurized dissolving method by using a vortex pump removing the bubbles formed on the liquid surface packing the liquid part in a can container and carrying out the retort sterilization of the packed product at 134°C for 125 sec.COPYRIGHT: (C)2010,JPO&INPIT【課題】雑味、エグ味が低減され、風味の変化しない、コーヒー飲料の製造法の提供。【解決手段】焙煎したコロンビア豆を中挽きに粉砕し、カラム抽出機に仕込み、抽出機上部から95℃のイオン交換水を供給しながらカラム抽出機下方から抽出液を連続的に抜き出し、イオン交換水で希釈して、コーヒー組成物の溶液とする。該コーヒー組成物の溶液内に、渦流ポンプを用いて加圧溶解法にて窒素の微細気泡を放出し、次いで、液表面に形成された泡を除去する。液部を缶容器に充填し、134℃で125秒間レトルト殺菌し、容器詰めコーヒー飲料を得る。【選択図】なし
