DO NOT store your kernels in the refrigerator, as this will also cause the kernels to dry out. So yes, popcorn can go “bad” if not stored properly. ... Even popped popcorn can be stored for a few weeks, as long as it is in a sealed bag without air or moisture which can cause the popcorn to go stale.

Why is it a good idea to store popcorn kernels in the refrigerator?

Popcorn is best stored in an airtight container in the refrigerator. The airtight container keeps out moisture and the refrigerator allows the temperature to be controlled. Storing your popcorn this way will decrease the amount of unpopped kernels when you pop it.

How do you store popcorn kernels long term?

Really Long-Term Storage

The best way to store unpopped popcorn over the really long term is in Mylar bags, which are tougher than regular vacuum bags and protect against light. Portion your kernels into individual Mylar bags, and then add an oxygen-absorption pack to each one.