Part 1 —
The universal term to describe sparkling wine is Champagne, which is used as an inaccurate synonym for all sparkling wines, because technically speaking, “Champagne” is sparkling wine produced only in the Champagne wine region in France.
Authentic champagne really only constitutes approximately 10 percent of the worldwide sparkling wine market. Sparkling wine produced in other wine making areas in the world have many similarities, but are known by different names, such as Cava in Spain and Espumante in Portugal.
The primary difference between so-called still wines and sparkling wines is, of course, effervescence. Wines which are subject to second fermentation are sparkling wines, and it’s this secondary fermentation process that gives sparkling wine its characteristic bubbles.
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