The length of time a wine bottle can be kept after opening depends on several factors such as the type of wine, storage conditions, and personal taste preferences. Generally, wines with higher acidity and alcohol content, such as red wines, can last longer than wines with lower acidity and alcohol content, such as white wines.
In general, an opened bottle of wine can last from one to five days depending on the factors mentioned above. Here are some general guidelines for storing opened wine:
Refrigerate the wine: Storing the wine in the refrigerator can help slow down the oxidation process and keep the wine fresh for longer.
Use a wine stopper: A wine stopper can help seal the bottle and prevent air from entering, which can cause the wine to spoil faster.
Vacuum pump: Another option is to use a vacuum pump to remove the air from the bottle, which can also help extend the life of the wine.
Finish the bottle: The best way to ensure the wine stays fresh is to finish the bottle within a day or two.
It's important to note that while an opened bottle of wine may still be safe to drink after a few days, the taste may not be as enjoyable as it was when first opened. So, it's always best to consume the wine as soon as possible after opening.