How long will a bottle of champagne last after it is opened and then corked with stopper?

An opened bottle of champagne that has been recorked can generally stay fresh and drinkable for a few days. The exact duration depends on various factors such as the type of champagne, storage conditions, and the quality of the stopper used.

Here are some guidelines on how long you can expect an opened bottle of champagne to last after being corked:

- Champagne: Can usually maintain its flavor for 2-4 days.

- Sparkling wine: May stay fresh for 1-3 days.

To ensure the best taste and quality, try to consume an opened bottle of champagne within this time frame.