In folklore: good luck.
In reality: a black eye, frequently.
the tapered part of a champagne cork before it is inserted into a bottle is like a wine cork cylindrical and uniform
Never use a corkscrew on a champagne bottle.
slice off the top of the cork and use a corkscrew to pull out the remainder, however if the cork is crumbling, push the remainder into the bottle and use a strainer to catch the bits. Not elegant but who knows when it is in the glass
The wire collar that holds the champagne cork in place, is known as a 'muselet'.
Then air was leaking into the bottle and it's probably bad.
To prevent accidents involving champagne cork deaths, it is important to follow these safety measures: Point the bottle away from people and objects when opening. Hold the cork firmly while twisting the bottle. Use a towel or cloth to cover the cork while opening to prevent it from flying out uncontrollably. Keep a safe distance from others when opening a bottle of champagne.
Carbon dioxide is produced from yeast. This carbon dioxide causes champagne to bubble and the cork to pop.
Champagne corks are shaped like that due to the extreme pressure in a champagne bottle...the shape helps ensure that the cork will not fly out under the carbonation.
Away from your face and supposedly into the faces of others.
When a bottle of champagne is opened, the pressure inside the bottle causes the cork to pop due to the release of built-up carbon dioxide gas. The bubbles and fizzing in champagne come from dissolved carbon dioxide gas escaping when the bottle is opened.
The wire cage is to help hold the cork in place against the high pressure inside the bottle.
To prevent the risk of death by champagne cork during celebrations, it is important to point the bottle away from people when opening, hold the cork firmly while twisting the bottle, and never shake the bottle before opening. Additionally, using a towel or cloth to cover the cork can help contain any unexpected popping.