PROBLEM TO BE SOLVED: To provide a method capable of reducing imidazole by a simple method without damaging appearance and flavor even after storage, and food and drink in which the content of an imidazole derivative is reduced.SOLUTION: Provided is a method for reducing an imidazole derivative where coffee, caramel pigment, caramel pigment-containing food and drink, beers produced from malt or food and drink such as soy sauce containing an imidazole derivative represented by formula (I) and acid clay are subjected to clay treatment of being contacted at the pH of 1 to 10, and thereafter, centrifugal separation is performed to reduce the content of the imidazole derivative.COPYRIGHT: (C)2015,JPO&INPIT【課題】保管後でも外観や香味を損わず、簡便な方法でイミダゾールを低減する方法及び、イミダゾール誘導体の含有量が低減された飲食品の提供。【解決手段】下記式(I)で表されるイミダゾール誘導体を含有する、コーヒー、カラメル色素、カラメル色素含有飲食品、麦芽から製造されたビール類、または醤油等の飲食品と酸性白土とをpH1~10で接触させる白土処理を行い、その後、遠心分離を行うことによりイミダゾール誘導体含量を低減させるイミダゾール誘導体の低減方法。【選択図】なし