Champagne is a sparkling wine made from black Pinot noir and Pinot Meunier but also white Chardonnay grapes mainly. Champagne undergoes a second fermentation in the bottle to create carbonation, and is produced exclusively in the province of Champagne in France. The name champagne is protected by the Madrid system and its production is supervised by a professional international wine Council of the Champagne district, that demands specific vineyard practices, sourcing of grapes exclusively from specific parcels in the Champagne appellation and specific pressing regimes unique to the region.
A little bit about sparkling wines
Sparkling wine is customarily served in a champagne glass which keeps gas from escaping, while keeping the drink cool.
There are over 9,000 brands that make sparkling wine.