Sparkling Wine is a type of wine that contains significant levels of carbon dioxide, resulting in bubbles when poured into a glass. The carbonation can occur naturally through the traditional method, where the secondary fermentation takes place in the bottle, or through forced carbonation methods.

The traditional method involves allowing the wine to undergo a second fermentation in the bottle, trapping carbon dioxide produced as a byproduct. This method is often associated with high-quality sparkling wines, such as Champagne. Alternatively, some sparkling wines undergo carbonation through methods like the Charmat or tank method, where the secondary fermentation occurs in large pressurized tanks before the wine is bottled.

Sparkling wines come in various styles, ranging from bone-dry to sweet, and can be made from different grape varieties. Champagne, produced in the Champagne region of France, is perhaps the most famous example of sparkling wine, but many other regions around the world produce excellent sparkling wines with their own unique characteristics.