of the show's departed cast and crew reached a distinctive destination in a designated voyage, and it was time to move on. William Asher, 1996
Quick Answer. 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 use-by date if refrigerated before it goes bad. A person should also check other dates on a jar of mayonnaise, such as the sell-by or best before dates. Keep Learning.
How Long Does Mayonnaise Last? How long does mayonnaise last? How long does Miracle Whip last? Unopened mayonnaise will last at least a week beyond a best by date, erring on the safe side. The shelf life of mayonnaise regardless of such things as the sell by date, use by date, or best before date is not very long.