An unopened box of JELL-O mix does not have an expiration date. and can be safety stored in the pantry for 3 to 4 months, according to Eat By Date. This time frame applies to both unflavored and flavored varieties.Know More
Unopened containers can be stored in the refrigerator for 12 to 18 months past the printed dates.
Pre-made JELL-O that has been opened should not be kept in the refrigerator for more than 7 to 10 days. Opened dry mixes can be stored in the pantry for 3 to 4 months.
If Jell-O becomes watery and begins to separate, it should be discarded because this can be a sign that it has spoiled.Learn more about Food Spoilage
Unpopped popcorn does not typically have an expiration date. Instead, manufacturers usually stamp it with a "best by" date to indicate the date on which freshness can start to deteriorate.Full Answer >
A box of prepackaged cake mix, which usually has a "best before" date rather than an expiration date, can usually be used for up to 5 months past the box's printed date. This is contingent on the box being unopened and kept in a cool, dry place, such as a kitchen pantry.Full Answer >
Unopened, commercially produced mayonnaise is almost indefinitely shelf stable. Once opened and refrigerated, it may remain safe to consume for two to three months beyond its "purchase by" date. Its color and flavor, however, may degrade and become unpalatable.Full Answer >
The lifespan of cheese depends largely on its type as soft and processed cheeses stay fresh for one to three weeks after opening, while hard or unprocessed cheeses may retain their quality for several months after purchasing. Generally, natural cheeses that are not processed and cheeses stored in chunks, rather than shreds, stay fresh far longer than their softer or processed counterparts. Although many cheeses come with "best by" dates, proper handling and storage techniques may either shorten or lengthen the lifespans of cheeses.Full Answer >