The so-called draft beer and cooked beer are named according to different sterilization methods of beer. Draft beer (fresh beer) refers to a beer that has not been pasteurized after packaging and has a delicious taste but is easily deteriorated and difficult to preserve. Fresh yeast in draft beer stimulates the secretion of gastric juice, enhances appetite, promotes digestion and absorption, and is very helpful in enhancing physical fitness. Cooked beer refers to pasteurized, filtered beer. The yeast in the wine has been warmed to kill and will not continue to ferment, so it is stable and can be stored for a longer period of time or used in sales, more suitable for fat People drink. Draft beer undergoes strict filtration procedures and removes impurities to become pure draft beer (pure fresh beer). This kind of beer will not deteriorate in storage for several months.