A Cognac may be sold only when its youngest eau-de-vie reaches a minimum of two and a half years old, as of the first day of October following the harvest of the grapes.
Only the years of storage in oak barrels count to determine its age.
Once transferred into glass, the Cognac stops maturing. It stands still.
A Napoleon, or X.O (for Extra Old ), also called Hors d'âge, is a cognac which youngest eau-de-vie is at least six and a half years old.
Most Cognac houses will use Cognacs much older than those required by law, allowing X.Os to reach a minimum of twenty years old, in order to reveal their very best.
Jenssen - Carte blanche XO
Carte Blanche
Heady, floral notes of jasmine and honeysuckle. Spice and zest of orange reveal its Grande Champagne cognac terroir; a hint of rancio, dried apricot and hazelnut bear witness of long years of ageing.
Jenssen - XO Grande Champagne
XO Grande Champagne
A fully mature, old school XO. Decades of ageing realise the potential of Grande Champagne Cognacs and prove that they counterbalance even extensive use of new oak. Opulent rancio and notes of smooth, vanilla-like butterscotch from melted tannin are rarely found in ordinary XOs.









