I believe that many people who love wine like to invite three or five confidants to raise a glass and drink together. First, it is lively, and secondly, there is no need to worry about running out of wine. But if you drink it alone, how do you preserve the wine left over after you open it? This article will share with you some practical ways to preserve open bottles. .
1. Methods of Preserving Wine
Once the wine is opened, the oxygen in the air makes the acetic acid bacteria very active, and this is enough to acidify the wine in a short time, turning an otherwise full-flavoured wine into a personalityless vinegar. Therefore, the key to keeping wine fresh is to reduce the degree of contact between the wine and oxygen, or to slow down the oxidation reaction under the action of microorganisms, so as to delay the natural oxidation process of the wine.
1. Lower the temperature, inhibit the activity of microorganisms, and reduce the degree of oxidation
A wine cabinet with excellent thermal insulation performance is the best choice to help keep wine fresh. A low enough temperature can reduce the speed of chemical reactions, and can also inhibit the activity of acetic acid bacteria, further reducing the impact of oxygen on wine.
2. Change the bottle and repack it to reduce the contact area between the wine and oxygen
Wine can be placed in smaller bottles or other containers, sealed and placed in a low temperature environment. When changing bottles, try to minimize the wine’s exposure to air.
3. Remove oxygen or fill inert gas to reduce the oxygen content in the wine environment
A vacuum pump can be used to extract the air from the wine bottle to reduce the oxygen content in the wine environment. However, this process may also extract volatile flavors or taste substances from the wine, affecting the overall quality. Oxygen isolation can also be accomplished by pumping an inert gas such as nitrogen into the wine bottle.
Second, the details that should be paid attention to before saving after opening the bottle
1. If you already expect to drink an incomplete bottle of wine, try to choose some more durable wines, such as Italian red wine with high acid and high tannin, which usually have a longer shelf life.
2. As long as the basic sobering requirements are met, the wine stopper should be put back in time after each pour.
3. The opened wine bottle should be placed upright, which can reduce the contact between the wine liquid and oxygen.
