Yeast is commonly known as the soul of beer production. It achieves different styles and flavors of beer, and directly affects the normal progress of fermentation production and the quality of beer.

Beer types1.Draft beer and Pasteurized beer: Draft beer refers to beer that has not been pasteurized after packaging. It tastes delicious, but it is easy to deteriorate and is not easy to store. The draft beer undergoes a strict filtration process to remove impurities and becomes pure draft beer (pu