Send draught beer in barrels to make money?

Beer is an alcoholic beverage made from malt, barley malt and hops by liquid gelatinization and saccharification and then liquid fermentation.

Beer has low alcohol content, including carbon dioxide, various amino acids, vitamins, low molecular sugar, inorganic salts and various enzymes. Among them, low molecular weight sugars and amino acids are easily digested and absorbed, which produces a lot of heat energy in the body, so beer is often called "liquid bread". 10 12 BX beer can generate 3344kJ of heat, which is equivalent to the heat generated by 3 ~ 5 eggs or 2 10g bread. A light manual worker who can drink 1L beer a day can get one-third of the calories he needs.