What does XO mean for Cognac?
XO or Napoleon means Extra Old, aged at least six years. There are even plans to change the definition of XO to be oak aged for at least ten years.
Does Cognac go bad?
Store unopened Cognac bottles in a dry, dark space at room temperature for years at a time, as the Cognac will not age in glass bottles. Although the flavor of Cognac can change over time, a half full bottle will not show any perceptible changes in quality for at least ten years.
How do you drink Cognac XO?
The younger types of Cognacs, VS and VSOP, can be used in a variety of different ways, including in cocktails. But the XO, or "Extra Old" should be drunk either neat or on ice. To open up the aroma of a Cognac, you can add a bit of cold water if you're drinking it neat.