1, keep away from light
Because of the use of hops, beer must contain the key alpha acid, and its isomeric products form the bitter taste of beer. There are also a lot of xanthones in hops, which are the main sources of light odor.
In order to avoid the influence of light to the greatest extent, brown bottles are usually used to block the light for puree beer with high quality requirements. However, in the process of family storage, it is necessary to pay more attention to avoiding light. You can try to keep the beer in a dark storage room, wine cabinet or refrigerator, so as to maintain its original quality.
2, heat preservation
Primary beer usually adopts secondary fermentation technology. After bottling, the beer retains a certain amount of active yeast and residual sugar. In this process, yeast will slowly metabolize residual sugar and produce carbon dioxide (bubbles). The time before a large number of yeasts die and dissolve is regarded as the shelf life.
Therefore, the storage temperature of beer should be controlled between 5- 10℃ to maintain the basic activity of yeast. Excessive temperature will accelerate the metabolism of microorganisms, shorten the shelf life of beer and even lead to its easy deterioration.
3, vertical storage
In order to maintain the quality of beer, it is best to store it vertically, so as to avoid the influence of metal or oak on the taste of beer, reduce the contact between dead yeast and liquor, and prevent accidents during operation.
Shelf life of beer
Because different kinds of beer have different shelf life, it can be stored at low temperature in draught beer for at most 1 month. The shelf life of canned beer is mostly 1 to 2 years, and the shelf life of cooked beer is 50 days. Different brands of beer have different shelf life, but most of them are within 2 years.
Beer needs to be stored in a low temperature, dark and dry environment to extend its shelf life. Exposure to high temperature, direct sunlight or humid environment will accelerate the deterioration of beer. The production technology and formula of beer will also affect the shelf life. Some techniques and formulas can make beer more stable and prolong its shelf life.
Although beer can continue to be drunk after expiration, the quality and taste may be reduced. Expired beer may have problems such as oxidation, poor fermentation or odor. Therefore, it is recommended to drink beer within the shelf life to ensure the best quality and taste experience.