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.
At my hospital, test strips and controls are good for 30 days after being opened, regardless of what the manufacturer says. Regardless of the dates on the bottles, we have to toss everything after 30 days. Rather wasteful, imo. They are good for 90 days once they are open.