Champagne's fame and success is, of course, the product of many complex factors. And yet there are three key reasons of which we can be reasonably certain. First, the all-important bubbles, which make it stand out from less "exciting" wines. Second, the high prices that Champagne commands, which make it feel somewhat exclusive and special. Third, two centuries of clever marketing to a willing and highly receptive consumer base.

Pinot Noir, Pinot Meunier and Chardonnay are the primary grape varieties used to make Champagne – a recipe used for sparkling wines across the world.