Drinks with alcohol content greater than or equal to 10vol% can be exempted from labeling the shelf life. Because microorganisms can't grow and reproduce and produce harmful substances even in 10% alcohol solution.
The alcohol content of liquor is relatively high. Above this alcohol content, it is basically difficult for fungi to survive and there will be no problem of deterioration, so the shelf life can be omitted. However, if the alcohol content is very low, the microorganisms in the wine are easy to grow and reproduce, which makes the wine deteriorate and produce sour taste, so low-alcohol wine should not be stored for a long time.
The newly brewed wine tastes raw, bitter and astringent, but after natural cellar aging, the aldehyde in the wine is continuously oxidized into carboxylic acid, and the carboxylic acid is esterified with alcohol to produce ethyl acetate with aromatic smell, which makes the wine mellow and produces wine fragrance.
Generally speaking, the relative humidity of liquor storage is about 70%, and the bottle cap is prone to mildew if the humidity is too high; No fireworks between 0 and 20 degrees. Containers should be tightly sealed to prevent wine leakage and reduce alcohol content.
It is best to store it in a dark environment with suitable humidity and temperature, and "watch more and move less" when storing it. It is also important to choose liquor suitable for long-term storage.
Extended data:
The main component of wine is alcohol, and its chemical name is ethanol. When ethanol enters the human body, it will have many destructive effects. When the concentration of alcohol in blood reaches 0.05%, the effect of alcohol begins to appear, resulting in excitement and euphoria; When the alcohol concentration in blood reaches 0. 1%, people will lose their self-control ability.
If it reaches 0.2%, people have reached the point of being as drunk as a fiddler; When it reaches 0.4%, people will be unconscious, unconscious and even life-threatening. The most harmful effect of alcohol on people is the central nervous system. It makes the nervous system from excitement to high inhibition, which seriously destroys the normal function of the nervous system. Excessive drinking is harmful to the liver. Chronic alcoholism can lead to alcoholic cirrhosis.
Excessive drinking is harmful to health, but the most harmful thing is drinking on an empty stomach. Drinking alcohol on an empty stomach will stimulate the gastric mucosa and easily cause gastritis, gastric ulcer and other diseases. Drinking on an empty stomach can also cause hypoglycemia, which leads to insufficient glucose supply in our body and symptoms such as palpitation and dizziness.
People's Daily Online-Will liquor really "get more fragrant with age"? How should I store it?
Baidu Encyclopedia-China Spirit