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Two main fermentation processes for beer fermentation

The fermentation time of beer is determined by factors such as item kind, top quality needs, yeast performance, vaccination quantity, fermentation temperature, season, as well as other aspects. Usually, the fermentation time of summer beer is shorter, and the fermentation time of craft beer is much longer.The fermentation innovation ought to be altered according to the style and structure of the fermentation tank. Under regular conditions, According to the different types of yeast used, it is divided into bottom fermentation technology and top fermentation technology.

Bottom Fermentation Technology
The bottom fermentation technology is also called the Lagers process. It is a fermentation technology used in industrial beer. After the fermentation is completed, the yeast will settle to the bottom of the fermentation vessel at a fermentation temperature of 5-10°C. The fermentation time is 3-7 days. The beer that is fermented in the lower part has a light taste but is rich in foam.

Top Fermentation Technology
The upper fermentation technology is also known as the Ales process. This process is generally used for the fermentation of craft beer. During the fermentation process, the yeast floats on the fermentation surface with CO2, and the fermentation temperature is 15-20°C. The upper fermentation time is longer, usually 15-30 days. Of course, some craft beers must fermentation for more than 40 days. The beer fermented on the top has a strong taste and a malt aroma.If you want to know even more about microbrewery, you can call us.