The main components of coffee astringency nutrition table introduction

The astringency of coffee is mainly due to the degradation of chlorogenic acid into decaffeoylquinic acid during roasting. In addition, a small amount of tartaric acid contained in coffee is also a source of astringency. The astringency in coffee is mainly due to the coagulation of dicaffeoylquinic acid with proteins in saliva in the mouth and in the mouth.