PROBLEM TO BE SOLVED: To provide a method for producing purified roasted coffee beans, which obtains a coffee extract which not only has a high content ratio of dimers of chlorogenic acid and a low content ratio of hydroxyhydroquinone to the chlorogenic acid but also excellent flavor.SOLUTION: The method for producing purified roasted coffee beans includes heat-treating raw material roasted coffee beans which have a temperature of 80-150°C under atmospheric pressure, at 90-150°C under a vacuum condition of not more than 6.7 kPa.COPYRIGHT: (C)2011,JPO&INPIT【課題】クロロゲン酸類のジ体含量比率が高く、かつ該クロロゲン酸類に対するヒドロキシヒドロキノンの含有比率が低いだけでなく、風味の良好なコーヒー抽出液を得ることの可能な精製焙煎コーヒー豆の製造方法を提供すること。【解決手段】大気圧下で80~150℃の原料焙煎コーヒー豆を、6.7kPa以下の真空条件下、90~150℃の温度で加熱処理する、精製焙煎コーヒー豆の製造方法。【選択図】なし
