Strict adherence - through the centuries and contrary to modern tendencies - to traditional cognac grape varieties : Folle Blanche - Colombard - Montils
Varieties which are delicate and fragile to grow but inimitable in taste and aroma.

Distillation on light lees in small copper pot stills, "bouilleur de cru".
Very long ageing in Limousin or Tronçais oak barrels, generally two to three times longer than legally required and … even longer for the rarer quality products.