“Brut” refers to a popular style of dry sparkling wine made with very little sugar (less than 12 grams per liter). As a result, they're rarely sweet — although there are exceptions.

Some might assume that the term brut refers specifically to Champagne, but Champagne is any sparkling wine that's made and bottled in the Champagne region of France.

While brut wine tastes crisp and acidic, often with fruit flavors much like any Champagne or similar sparkling white wine, the word "brut" is simply a French word for “dry.”

A straightforward brut is going to have very little sugar left after fermenting. An extra-brut has 6 grams per liter, and a "brut nature" will have less than 3 grams per liter.