Can an unopened bottle of mayonnaise go bad?
Can an unopened bottle of mayonnaise go bad? Properly stored, an unopened package of mayonnaise will generally stay at best quality for about 3 to 4 months after the date on the package. The best way is to smell and look at the mayonnaise: if mayonnaise develops an off odor, flavor or appearance, or if mold appears, it should be discarded. How long is Miracle Whip good after the best by date? If unopened and left in a pantry, Miracle Whip can last for a week past its use-by date; if opened, it can last for a month past its...