Beer is undoubtedly one of the oldest fermented alcoholic beverages in the world and it is certainly unknown exactly where and at what time it arose, but the Egyptians claim their discovery.
Initially to prepare beer, water, hops (bitter flavor) and malt (barley) were used, it was enough to mix these ingredients and cook them outdoors for a few days after obtaining beer, even these 3 ingredients were those described in some basic rules of elaboration. beer in Germany, but it was not until the invention of the microscope where it was thoroughly studied that not only to make beer those 3 ingredients were needed, but also that a fourth ingredient (yeast) was needed, which were the microorganisms that converted the sugar present in malt in alcohol and that without these it was impossible to obtain beer. In the old methods of brewing beer was also present, which was in the environment and was dragged by the air to reach the fermentation pots, but these communities were unaware of the presence of this microorganism due to the lack of technology and research in the area. Today these 4 essential ingredients are recognized to make a beer, beer is also made using cereals different from barley or mixtures and is undoubtedly one of the most consumed beverages in the world after water and tea.
