François Dubernard vinifies Cabernet-Sauvignons over 37 years old, Merlots over 35 years old, Cabernet-Francs over 21 years old and, rarely, Malbecs over 21 years old. Ploughing, reasoned phytosanitary control, organic amendments, maturing on lees... etc. In short, everything is done to interpret the terroir with healthy and natural grapes.