Barley is the main raw material for brewing beer, but it must be made into malt before it can be used for brewing wine. The process of barley germination and drying under artificial control and external conditions is called malt manufacturing. Barley is called green malt after germination and malt after drying.
2. Water is the "blood" of beer, and the contents of inorganic matter, organic matter and microorganism in water will directly affect the quality of beer. General breweries need to establish a set of treatment system for brewing water. There are also some breweries that use natural high-quality water sources and even brew beer with glacier snow water.
3. hops have a great influence on the quality of beer and are indispensable for brewing beer. The main components of hops are A acid and B acid, as well as hop oil and polyphenols. It makes beer have unique bitterness and aroma, and has the ability to preserve and clarify wort, and at the same time provides the unique flavor of beer.
4. Brewer's yeast is a kind of yeast, which is a single-celled low-level plant and cannot move. Its cells can only be seen with the help of a microscope. The milky white and moist yeast mud seen by naked eyes is a collection of countless yeast cells. There are many yeasts in nature, but not all of them can be used to brew beer. Scientists call the yeast beneficial to beer fermentation beer yeast, which needs to be obtained by pure culture in beer production. Both alcohol and carbon dioxide in beer are produced by beer yeast fermentation.
I hope these are helpful to you, thank you!