The brandy is aged in oak barrels in the castle cellars. The clay and limestone soil in Ténarèze is exactly the same as in Cognac's top growing regions of Grande Champagne where Ugni Blanc (grapes) reign. Armagnac from Ténarèze ages longer, and, better.
Distilled for 300 years in the oldest distillery in Gascony, Chateau du Busca Armagnac Tenareze continues to be produced at the property according to traditional methods. Follwing continuous distillation, the brandy is aged in oak barrels in the castle cellars. The same family has been producing armagnac here for over two centuries.