All Cognac is Brandy, but not all Brandy is Cognac. Cognac must be produced in the Cognac region of France, while Brandy can be produced anywhere in the world.
Know your Brandy labels
Very Special (VS) or 3-star is aged for at least two years, Very Superior Old Pale (VSOP) is aged for at least four years, Extra Old (XO) is aged for at least six years, Hors D'age: Too old to determine the age.
How is Brandy served?
Serving Brandy is traditionally served at room temperature (neat) from a snifter, a wine glass or a tulip glass. When drunk at room temperature, it is often slightly warmed by holding the glass cupped in the palm or by gentle heating.