Champagne

Store upright or at a 45° angle in a cool, dark place (50–65°F ideally). Keep away from light and heat. Once opened, champagne loses carbonation quickly; drink within a few hours or use a champagne stopper and refrigerate for up to 24 hours.

Chill champagne to 45–50°F before serving for optimal flavor and fizz.

Open carefully by twisting the bottle (not the cork) to reduce popping and spillage.

Use champagne in cooking (sauces, risottos, poaching) to add subtle flavor; the alcohol content typically burns off during cooking.

Flat champagne is still useful in cooking—don't waste it.

Opening champagne too forcefully, causing waste and injury risk.

Serving it too warm, which muffles the bubbles and flavor.

Storing it upright in warm conditions, which damages the cork and accelerates oxidation.

Assuming only 'Champagne' label counts—other quality sparkling wines (Prosecco, Cava, crémant) work well for cooking and casual drinking.