Brewing a high-quality beer is not so easy, because there are always some unavoidable interference factors in the brewing process, which will make the beer have one or another flavor defect. Therefore, understanding the various flavor defects of beer and their causes will help us to effectively control them during brewing, thereby avoiding or reducing their occurrence.

Causes of turbidity and precipitation in beer1. Biological turbidity:In short, bio-turbidity of beer occurs for two reasons:First, the fermentation process contaminates other microorganisms, causing the death temperature of beer to rise.