Found a Pisco in a flea market. Still sealed, never opened. Don’t know how old it is, how can I tell it’s safe to drink?

This flea market where I go has a selection of unopened liquors and wines. The owners didn’t know how old the bottle is. It’s still sealed, everything is intact.

Is there a way I can be sure it’s still safe to drink, or is it better not to risk it?