What is a critical step when removing the cork from a bottle of sparkling wine?

When removing the cork from a bottle of sparkling wine, loosening the wire cage is a critical step because it secures the cork and ensures that it doesn't become a projectile when the cork is released. The pressure inside a bottle of sparkling wine can be quite high, often exceeding 3 atmospheres, which means that a cork can pop off with considerable force if not handled properly.

By carefully loosening the wire cage, you maintain control over the cork as it is removed, reducing the risk of injury or mess. This procedure also helps to prevent any sudden eruption of the wine and allows for a more graceful opening. Ensuring that the wire cage is adequately loosened—without removing it completely until you have a grip on the cork—means you'll have a safer experience when enjoying sparkling wine. Other options do not involve the essential safety and technique needed for cork removal.