Quiet, Not Loud
Opening Sparkling Wine Without a Pop or a Fizzy Mess
Sparkling wine should be opened quietly: remove the foil, loosen the wire cage while holding the cork firmly with your thumb, tilt the bottle, and turn the bottle rather than the cork. Well chilled and without a bang, the carbon dioxide stays in the wine instead of on the floor.
Why Does Sparkling Wine Foam Over When Opened?
At 20 °C, a bottle of Champagne holds a pressure of around 6 bar, according to the Comité Champagne. That's roughly two to three times the pressure in a car tire. Quality sparkling wines like Sekt, Cava, or Crémant must have at least 3.5 bar, while semi-sparkling wines like Prosecco Frizzante have only 1 to 2.5 bar. The higher the pressure, the more force sits behind the cork, and the more violently the wine can shoot upward.
Whether a wine foams over mostly depends on temperature. Carbon dioxide dissolves better in cold wine than in warm wine. A warm bottle therefore has more gas trapped in the headspace below the cork, and releases it all at once when opened. Jostling makes things worse, too. A bottle that's just been jolted around in a shopping bag needs time to settle. Tiny gas bubbles that form on the glass wall during shaking act like launch points for a foam fountain otherwise.
Opening Sparkling Wine Step by Step
The Comité Champagne, the trade body for the Champagne region, describes the process in eight steps. First, the bottle is dried with a cloth so it doesn't slip. Then the foil comes off, and you loosen the wire loop of the muselet, the wire cage over the cork. From this moment on, your thumb rests on the cork and stays there. The wire is removed while your hand keeps the cork in place.
Now tilt the bottle 30 to 45 degrees, pointing the neck away from everyone. One hand grips the cork, the other slowly turns the bottle at its base. The cork gives way and slides out. Just before it's free, press gently against it so the gas escapes with a hiss rather than a bang. The tilted angle increases the wine's surface area inside the neck, so less foam rises.
Cork, String, Crown Cap: Every Closure Opens Differently
Under German wine law, a Sekt b.A. must be sealed with a mushroom-shaped stopper and a retaining device, meaning a cork and wire cage (agraffe). Champagne, Cava, and Crémant carry the same closure. With Prosecco Frizzante, on the other hand, you'll often see a string over the cork, known as the spago. Here the pressure is lower, and the cork can usually be pulled out by hand once the string is loosened. Still, don't underestimate it - even 2.5 bar can drive a cork forcefully out of the neck.
Pét-Nat, Prosecco Sui Lieviti, and some growers' sparkling wines are sealed with crown caps. Many of these wines still contain yeast because they haven't been disgorged. The sediment particles act as nucleation points for bubbles, so a warm bottle can foam over suddenly. It helps to open the bottle cold and lift the crown cap slowly, letting a little gas escape first. If you don't want the sediment in your glass, stand the bottle upright for a few hours beforehand.
What to Do If the Cork Is Stuck or Breaks
If the cork is stuck fast, patience works better than force. A short twist in each direction often loosens it. A kitchen towel over the cork improves your grip, and sparkling wine pliers grab the mushroom head more securely than bare fingers. A corkscrew has no place in a sparkling wine cork. The pressure can send the pierced cork, spiral and all, flying out of the neck.
If the mushroom head breaks off and the remainder stays stuck in the neck, proceed with caution. Don't push the cork remnant inward, as the wine will then shoot out. It's better to hold a cloth over the neck and pull the remaining piece out with pliers. Ophthalmologists routinely warn about eye injuries from sparkling wine corks around New Year's Eve. A cork with no thumb resting on it while the wire is loosened can pop out on its own. That's why your hand stays on the cork from the very first step, and the neck is never pointed at anyone's face.