Does popcorn expire?

Popcorn kernels do not expire in the sense that old popcorn can make you sick, but popcorn can dry out which causes the popcorn to no longer pop. Microwave popcorn sold in stores has a best-by-date on the box.

Popcorn that has been popped can last for a few months before the taste changes, but it is recommended to eat popped popcorn within two weeks. Popped popcorn and the popcorn kernels must be sealed and stored in a cool dry place, in order for them to last for the longest period of time, without changing the quality of the product.