Why should you keep popcorn kernel in refrigerator?

Keeping popcorn kernels in the refrigerator can help maintain their moisture content, which is crucial for optimal popping. Cooler temperatures can slow down the loss of moisture, preventing the kernels from becoming too dry and ensuring a better pop. Additionally, storing them in a sealed container in the fridge can protect them from humidity and odors, which can affect flavor. Overall, this method helps preserve the quality and freshness of the popcorn kernels.