PROBLEM TO BE SOLVED: To provide a method capable of peeling efficiently a pericarp of each grape fruit, while keeping the quality of a pulp.SOLUTION: After performing at least one kind of treatment selected from a surfactant treatment and a physical treatment, a heat treatment by alkali aqueous solution is performed continuously, to Kyoho grape or a grape fruit of the relative kind to Kyoho grape having a black-based or red-based pericarp color, to thereby cleave a pericarp largely and facilitate peeling of the grape fruit, and to obtain a high-quality grape pulp.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】本発明は、果肉の品質を保持しつつ個々のブドウ果実の果皮を効率的に剥くことのできる方法を提供する。【解決手段】巨峰または果皮色が黒色系もしくは赤色系の巨峰近縁種のブドウ果実に対して、界面活性剤処理と物理的処理から選択される少なくとも1種類の処理を行ったのちにアルカリ水溶液による加熱処理を連続して行うことで、果皮が大きく開裂しブドウ果実の剥皮が容易となり、高品質なブドウ果肉を得ることができる。【選択図】なし