Brewery Setup Blog

Beer Fermentation

Beer fermentation is a complex biochemical and material transformation process. The main metabolites of yeast are ethanol and carbon dioxide, but also form a series of fermentation by-products, such as alcohols, aldehydes, acids, esters, ketones and sulfides. These fermentation products determine the physical and chemical properties of beer such as flavor, foam, color and stability, and also give the typical characteristics of beer.

Beer fermentation, due to the use of different yeast, can be divided into two types of fermentation above and below. The former uses upper yeast and higher fermentation temperature; The latter uses lower yeast and lower fermentation temperature. These two kinds of beer have different flavor and characteristics. 

The following fermentation method is widely used in beer production all over the world. More than 8% of China's beer is produced by the following fermentation method, and the varieties of beer fermented below include Bilson beer, export beer, light beer, etc. for example, China's famous Tsingtao beer is a typical beer fermented below; Wheat beer, Alte beer and Korsch beer are top fermented beer. In Britain, top fermentation is still the main method of beer production. In recent years, the wheat beer produced in China is increasingly popular and loved by consumers. The production of wheat beer shows an obvious growth trend, and the above fermentation technology has also begun to attract people's attention.

According to the traditional production method, beer fermentation process is divided into two stages: pre fermentation (main fermentation) and post fermentation. Yeast reproduction, metabolism of most fermentable sugars and formation of fermentation products were completed in the pre fermentation stage. Post fermentation is the continuation of pre fermentation, which must be carried out in a closed fermentation container. The residual sugar is further decomposed to form carbon dioxide, which is fully dissolved in beer to reach saturation; Beer is aged at low temperature and further matured and clarified.

With the continuous development of science and technology, the biochemical mechanism of beer fermentation process has been mastered by people. In order to shorten the fermentation cycle and improve the utilization rate of fermentation equipment, people have created many new fermentation methods on the basis of traditional fermentation technology, such as high temperature fermentation, stirring fermentation, pressure fermentation, continuous fermentation, immobilized yeast fermentation, and developed a variety of new fermentation containers. Using these new technologies, the pre (main) fermentation and post fermentation can be carried out in the same container, which not only ensures the quality of beer, but also simplifies the management and operation, and plays an important role in promoting the development of beer industry.

If you are planning to open a brewery. TIANTAI BrewTech could help you answer your questions and supply the brewery equipment system. We supply 2-150bbl complete beer brewing brewery equipment system including malt milling equipment, brewhouse equipment, fermenters, brite beer tanks, beer bottling machine,beer canning machine, beer kegging machine, hopping machine, yeast propagation equipment. We also supply all auxiliary brewery systems like steam heating pipe and valves, water treatment, filter, air compressor etc. Everything in brewery are all in our list.

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