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.
Best Answer: So long as the vial has not been opened they will be good for a couple years past the expiration date. But the minute the vial is opened and the air gets in then they start to deteriorate. Some vials are labeled as good for 30 days, and some for 45, and still others for 90 days after opening. Read the accompanying info to see how long yours are good for after opening the vials. Source(s): Nana Lamb Â· 7 years ago.