Nothing can be more disappointing than getting ready to eat a big batch of popcorn, only to open the bag and find a bunch of unpopped kernels! There are a few reasons why popcorn may not pop as it should:
As popcorn kernels age, they tend to lose moisture, the ingredient that causes popcorn to "pop." To prevent this, unpopped popcorn should be kept on a room-temperature pantry shelf in a sealed container.
Popcorn has a shelf life of about 18 months; after that, the moisture level drops. But who would leave a delicious bag of JOLLY TIME Pop Corn sitting on a shelf for that long?!
Types of Corn
Although there are three basic types of corn, there is only one popcorn.
Field Corn (used as feed for livestock)
Sweet Corn (corn-on-the-cob, canned corn)
Popcorn (containing hard starch, which, along with the interior moisture, enables popping)
Unlike popcorn, the field and sweet corn varieties do not have the hard starch necessary for popping.