Cognac and regular brandy are distinct in several aspects. Cognac is exclusively produced in the Cognac region of France while regular brandy can be made in various regions around the world. Cognac primarily uses Ugni Blanc grapes while regular brandy can utilize a wider range of grape varieties. The production process for cognac involves double distillation in copper pot stills known as Alambic Charentais while regular brandy may employ different distillation methods. Cognac must be aged in oak barrels for a minimum of two years whereas aging requirements for regular brandy can vary.