Introduction: The storage of red wine is very important. If you want to preserve red wine after opening it, you can put the cork back in the bottle and put it in the refrigerator for preservation. Generally, red wine can be kept in the refrigerator for 2~3 weeks after opening. If possible, nitrogen can also be injected into the wine, which can avoid the contact between alcohol and air to the greatest extent, slow down the degree of oxidation, and retain the aroma and flavor of the wine. Otherwise, if the bottle is opened for a long time and exposed to the air, it will lead to alcohol deterioration. You can also extract the oxygen from the wine and seal the bottle, which can help the red wine to be preserved for a longer time, but it should be noted that this method is not suitable for sparkling wine.

How long can red wine be preserved after opening a bottle? Many people think that red wine needs to be thrown away if it is not finished in one day. In fact, this practice is very wasteful. In fact, many red wines are more storable than many people think. For example, some red wines can be kept for 3 to 5 days, but they need to be kept in some cool places. Like ordinary sparkling wine, it can be stored for 1~2 days. At this time, it can be stored in the refrigerator, and the white wine can be stored for 3~5 days. At this time, you can replace the soft plug and store it in the refrigerator. In fact, some red wines with high acidity can be preserved for a long time after opening a bottle, and some may become more delicious after opening a bottle.

Why is red wine sealed with a cork? Red wine itself is made from grapes. Low-alcohol fruit wine needs to be stored for a period of time to be oxidized and matured, so that the taste can be better. This process requires oxygen and some microorganisms. Too much oxygen will cause acidification and taste worse. At this time, if it is sealed with a cork, some trace oxygen can enter the red wine and produce oxidation.

Finally, in addition to preserving red wine in daily life, the orientation of red wine is also very important. If placed vertically, it can reduce air, oxidize red wine and prevent red wine from turning sour.