How long can Cognac last?
Accordingly, can cognac expire?
The shelf life of Cognac is indefinite, but if Cognac develops an off odor, flavor or appearance, it should be discarded for quality purposes.
Similarly, you may ask, how long does Cognac last after opening?
around six months
Feel free to 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. Meanwhile, opened bottles of cognac should ideally be stored no longer than six months, as the alcohol may oxidize and begin to lose its flavor.