Open red wine can be kept for about a week after being stuffed with cork, so it should be kept in the refrigerator. If it is at room temperature, the storage time will be less, usually about 3 days.

When the red wine is opened, air will enter the bottle and react with the red wine. Over time, it will be over-oxidized, and the wine will turn sour, which is not suitable for drinking.

Wine is a living drink, which will change with time. The cork seals the wine in the bottle, forming a closed space, so that the wine has almost no oxygen, thus being preserved. However, when you open the cork, the air will reach the wine and immediately start to deteriorate.

Once the wine is opened, the oxygen in the air begins to work, initially softening the taste and opening the fragrance of the wine. Because this oxidation process lasted for many hours and days, this wine was finally inedible. So you should drink it before it goes bad. The less wine left in the bottle, the more air in the bottle, which leads to faster oxidation in the bottle.

Method for prolonging shelf life of opened red wine

1. Put the cork back in time after opening a bottle of red wine, which can prevent air from entering the bottle and causing oxidation reaction with red wine, and also can maintain the quality of red wine.

2. If there is finished red wine, you can first use a vacuum pump to pump the air out of the bottle and pour the unfinished red wine into the bottle, which can also ensure that there is no excess residual air inside, and this is also a very economical practice.

3. Red wine should be placed obliquely as far as possible during storage, which will not only help to precipitate wine dregs, but also penetrate the cork to make the bottle mouth tighter and help to maintain the quality of red wine.

Try not to let the sun shine directly on the red wine. Try to put it in a brown bottle and put it in a cool and dry place.