How does champagne get its bubbles?

The bubbles in champagne are triggered by the release of carbon dioxide gas. This gas is produced throughout the fermentation process, where yeast breaks down the sugars in the grape juice and transforms them into alcohol.

As the fermentation procedure continues, the co2 gas is produced in increasing quantities and eventually begins to leave from the champagne. This is why champagne requires to be kept in an unique bottle that can endure the pressure of the gas.

When you open a bottle of champagne, the abrupt release of pressure causes the carbon dioxide gas to escape from the liquid in the form of bubbles. That's why champagne is constantly served chilled, as this assists to keep the co2 gas in solution.

https://catbitcoin.com/?p=892 So now you know how champagne gets its bubbles!