Coomassie brilliant blue method for detection of high molecular protein content in beer was optimized to improve the repeatability and stability of the method. The relative standard deviation(RSD) of repeatability and stability of the optimized method were 3.68% and 3.92%, respectively.At the same time, the correlation between the high molecular protein content detected by the method and beer foam stability was analyzed. The results showed that the Pearson correlation coefficient between pasteurized beer fo...