Only brandy produced in the Armagnac region of southwest France can bear the name Armagnac. Along with Cognac, it stands as one of the world's most recognized styles of brandy, though the differences between the two go far beyond geography and name.
While Cognac is distilled twice in pot stills, Armagnac is typically distilled just once in a traditional column still. This approach produces a spirit that is often richer and more full of character, though it generally needs a longer period of maturation in oak casks to fully develop.
Production in Armagnac also tends to happen on a smaller and less industrial scale than in Cognac, creating a diverse range of small-batch bottlings. Age labeling is often clearer as well. Since the spirit frequently matures for extended periods, bottles are commonly marked with both their vintage and their year of bottling.
Thanks in part to this smaller-scale, more artisanal production - and the relatively uncommercial nature of the Armagnac trade - some exceptionally mature brandies from the region can still be found at prices far more reasonable than many of their more famous counterparts from Cognac.