>>22975584the previous owner left it upright for a decade and a half causing the cork to dry out and thus oxygen got in and spoiled it over time. You are supposed to leave corked bottles on their side so the cork remains swelled thus preventing outside air from getting in
Its not good for drinking but its good for cooking, it has its own unique flavor profile like worcester sauce or onions sauce and when you cook what alcohol is left evaporates since it has a lower boiling temperature