The main differences between draft beer and lager beer are as follows:
1、 Different brewing techniques
Draught Beer:
Adopting a special brewing process, without undergoing high-temperature sterilization treatment, only using microporous membrane filtration and other methods to remove impurities and microorganisms.
Usually, cold sterilization methods such as diatomaceous earth filtration or centrifugal separation are used to maintain the original flavor and active yeast of beer.
Mature beer:
After strict high-temperature sterilization treatment, pasteurization or instantaneous high-temperature sterilization methods are generally used.
During the sterilization process, high temperatures can cause some heat sensitive flavor compounds and nutrients to be damaged to a certain extent.
2、 Different appearance characteristics
Draught Beer:
The appearance is usually cloudy because it contains a certain amount of small particles such as active yeast and protein.
Rich and delicate foam, white and lasting.
Mature beer:
The liquor is relatively clear and transparent, with no obvious suspended solids.
Foam may be slightly inferior to draft beer, but it also has certain stability.
3、 Different taste and flavor
Draught Beer:
The taste is refreshing and delicious, with a strong malt aroma and a bitter taste of hops, as well as a light sweetness and fruity aroma.
Due to the presence of active yeast, there will be a slight yeast flavor and fermented aroma in the mouth, making the taste more layered.
Mature beer:
The taste is relatively mellow, and after sterilization treatment, the taste is purer, without the yeast flavor of draft beer.
The bitterness of hops and the sweetness of malt are relatively balanced, and the taste is relatively smooth.
4、 Different shelf lives
Draught Beer:
The shelf life is relatively short, usually around 3-7 days, and it needs to be stored under low temperature conditions to slow down the activity of yeast and the growth of microorganisms.
High storage conditions are required, such as temperature, light, and other factors that can affect the quality and shelf life of draft beer.
Mature beer:
The shelf life is relatively long, usually ranging from 6 months to 1 year or even longer.
Due to the high-temperature sterilization treatment, the microorganisms in the cooked beer are basically killed, and the stability is high. It can also be stored for a period of time at room temperature.
5、 Different nutritional values
Draught Beer:
It contains rich nutrients such as vitamins, amino acids, and active yeast, which have certain health benefits for the human body, such as promoting digestion and enhancing immunity.
Because it has not undergone high-temperature treatment, the nutritional components in draft beer are relatively complete.
Mature beer:
