Bouchon

Bouchon is the French name of a special stopper with clamps that is used on an opened bottle of Champagne or sparkling wine to preserve the bubbles. Capped with a bouchon, a bottle of sparkling will last about a week in the refrigerator. A bouchon is also a type of bistro in Lyon, France, known for its friendly atmosphere and for serving traditional, unfussy Lyonnaise dishes.