Will wine go bad

As trade becomes more and more frequent, many goods that people have never seen before have appeared in people's daily lives. Chinese people love wine very much, and wine is indispensable for many occasions. Foreign wine is also a must-have for some high-end gatherings. Some people also like to taste wine at home with their family. Will the wine go bad if it is not finished after opening? Let's find out together.

1. How long can wine be kept after opening the bottle?

Generally speaking, ordinary wine is best consumed within 4-6 hours after opening the bottle, and no longer than 24 hours. Once the wine left in the bottle comes into contact with air, the phenolic substances that affect its taste will dissipate and the taste of the wine will deteriorate. Even if a bottle of wine has only been opened for a day or two, the taste of the wine has changed. Because the changes are so rapid, the difference is obvious even in just 24 hours. Wine that has been opened for two or three days will start to taste bad and will be unfit for drinking.

However, this only applies to cases where the wine is not properly stored after opening the bottle. If it is properly stored after opening the bottle, it can still be stored for a longer time. Don't drink too much to avoid wasting it. It's okay if you can't finish it at once.

2. How to store wine after opening the bottle

1. Put the stopper back in the refrigerator

Putting the cork back into the bottle or tightening the screw cap is the simplest way to protect your rights. Suitable for home personal use. Common red and white wines from newer years can basically maintain their condition if stored in a refrigerator at a lower temperature for 1-3 days. However, it is important to note the following points:

(1) Keep the bottle upright to reduce the contact area between the wine and the air, and also to prevent the wine from coming into contact with the cork that has been exposed to the external environment.

(2) If the wine is corked, the end that was originally in the bottleneck is in contact with or close to the wine, so the environment is relatively moist and it maintains better elasticity. After breaking away from the bottleneck constraint, this end will usually relax and expand to a certain extent, so it becomes more difficult to push it back, so people usually choose to push the other end. But in fact, the end of the cork that was originally exposed outside is likely to be contaminated by foreign substances, and may even be contaminated with mold or other pollutants in some bad storage environments. So if you don’t have a regular rubber wine cork, and the end of the cork that was originally in the bottleneck cannot be put back into the bottle, at least wipe the other end clean and then put it back, and try to ensure that the remaining wine does not come into contact with the cork.

If the original wine cork is broken, a special wine cork can be used as a replacement. There are wine stoppers on the market that are specifically designed to isolate oxygen. They are not expensive and can be reused.

(3) When you take wine out of the refrigerator and drink it, remember to let it return to a suitable drinking temperature.

2. Vacuum preservation method

The vacuum preservation method is to extract the remaining air in the bottle to create a quasi-vacuum environment with low oxygen content to extend the shelf life of the wine. Usually a vacuum valve and vacuum stopper are used. Wine stored in the refrigerator after vacuuming can be preserved for a longer time. If a good vacuuming tool is selected, it can last up to 3-4 days without spoiling. However, the sealing quality of such tools is usually uneven, and sometimes the effect may not be as good as directly putting the cork back. This method is too professional and not suitable for personal use at home.