'Old
Maids' is a term for kernels that fail to pop and are often found at
the bottom of the popcorn bowl.
They can,
however, be rejuvenated. The water in kernels is what causes popcorn to
pop, so all you need to do is re-hydrate the dried kernels.
You can fill
'a one-quart jar three-quarters full of popcorn and adding one
tablespoon of water. Cover the jar with an airtight lid and give it a
few good shakes every few minutes until the popcorn has absorbed all
the water. Store the jar in a cool place'.
In two or
three days you can test-pop a batch of kernels. If you still get old
maids, add a few more drops of water to the jar, shake it, and let it
sit for a few more days.