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At the end of your meal, your bottle of wine is not finished. You obviously don't want to throw it away. How long can you keep your opened and opened bottles without damaging the wine inside? White wine, red wine or Crémant d'Alsace, we tell you everything you need to know to get the most out of your wine bottles: wine conservation cannot be improvised.
White wines can be kept for more or less time depending on their degree of sweetness.
Dry white wines do not keep for long, even if they are hermetically sealed with a cork. If kept in the refrigerator, they cannot be kept for more than 3-4 days.
On the other hand, sweet or syrupy white wines can be kept longer. The sugar present in these wines acts as a preservative and thus slows down the development of bacteria that can alter the quality of the wine. If kept in the refrigerator, sweet and syrupy wines can be consumed within a month of opening.
And if the opportunity to finish your bottle of white wine doesn't arise, don't hesitate to use it for cooking, in the elaboration of a sauce for example.
Like dry white wines, red wines do not keep for very long.
Red wines often deserve to be opened before tasting or even decanted, as this allows them to develop a maximum of aromas. Red wine that has been opened can therefore be kept until the day after opening without having been altered. From the second day after opening, the wine begins to oxidize and lose its liveliness. At the end of the third day, a light vinegar perfume announces a frank oxidation and will no longer be drinkable.
Like white wines, if your bottles of red wine cannot be finished, instead of throwing them away, consider using them when cooking.
In order to keep sparkling wines such as Crémant d'Alsace or Champagne well, it is essential to succeed in containing the carbon dioxide in the bottle responsible for the bubbles. To do this, a suitable stopper capable of resisting pressure must be used.
With a good hermetic sealing system, the Crémant can be kept in the refrigerator for 48 to 72 hours, or even 1 to 2 days longer if more than half the bottle remains and has not been reopened.
The less wine remains in the open bottle, the less pressure there will be and therefore the more quickly the gas will dissipate.
In order to keep your wine bottle in the best possible condition, there are a few simple tips to apply to avoid oxidation. Here is how to keep an open bottle.
The first thing to do to keep your wine is to cork the bottle directly after use.
Then, whether your wine is white or red, it is essential to keep it in the refrigerator. A low storage temperature will help to keep it fresh (the wine will also be protected from light). Just remember to take your bottle of red wine out one hour before serving so that it is at room temperature and that the cold in the fridge does not penalize the tasting.
Don't hesitate to use a system like Coravin during the service in order to expel the air from the bottle via a wine pump system, which puts the wine under vacuum. Thus closed, your bottle will keep its aromas longer.
By following this advice, the storage conditions will be optimal: they will favour the good conservation of a bottle of wine once it has been opened.