To recycle an old cork, insert the old wine or whiskey cork into the Champagne bottle in place of the original cork. Champagne bottles are specially designed to withstand the pressure inside the bottle created by the carbon dioxide. Never transfer leftover champagne to a regular wine bottle as a method of preserving it. [2] X Research source
Only wine made using a special tradition in the Champagne region of France can be called Champagne. Sparkling wine from different regions may have bottles with different sized openings, so make sure you’re using a Champagne-specific stopper.
Fill a wine or metal bucket halfway with a half-and-half ice and water mixture. [3] X Expert Source Murphy PerngCertified Wine Consultant Expert Interview. 15 March 2019. Gently place the bottle into the bucket, and finish filling the bucket with more ice and water. Make sure to leave the top third of the bottle exposed. [4] X Research source