Whole wheat beer is a high-grade beer made of high-quality barley malt, high-quality hops and pure natural mineral water by traditional technology. The wine is mellow in taste, rich in wheat flavor, white and delicate in foam, durable in cup hanging and strong in mouth killing, and has obvious hops aroma and typical characteristics of whole wheat beer. Beer fermentation process is a normal life activity of beer yeast under certain conditions, using fermentable substances in wort, and the product of its metabolism is the required product-beer.