“the old ones educate the young ones.”
This is the principle of the aging method called SOLERA. It's a perpetual reserve that Family Rozès keep feeding. These aging methods give exceptional continuity and melt.
This system originates from Andalusia, however all wine regions have their own tradition. In Armagnac, they called it the cellar master's cask.
At Château de Léberon, their Solera was started in 2001.