What happens to the gas pressure when opening a bottle of sparkling wine if done correctly?

When opening a bottle of sparkling wine correctly, the ideal outcome is that the gas pressure is released with a quiet 'phut' sound. This sound indicates a controlled escape of carbon dioxide gas, which is dissolved under pressure in the wine. The process involves gently twisting the cork while simultaneously applying pressure to it, allowing the gas to escape efficiently without causing excessive force or a loud noise.

This controlled release minimizes the risk of foam overflowing and prevents the cork from becoming a projectile, which could lead to injury or damage. The focus on a quiet release signifies that the gas is being vented properly, maintaining the integrity of the wine and preserving the experience for those enjoying it.