The usaul contaminate in beer are bacterium,fungus and wild yeast, most of them are anaerobion causing the muddy, flavor chaging and turning sour, Beer anaerobic culture medium should be found out.
啤酒中污染
常见菌有细菌、霉菌、野生酵母菌,

存在危害性较大
菌是细菌中
大部分厌氧菌,会使啤酒产生浑
、
、
酸等。


量和检
。
片《认识
》


