Can putting popped popcorn in the fridge keep is fresh longer?

Putting popped popcorn in the fridge will not keep it fresh longer. Quite the opposite, actually. Refrigeration will make popcorn stale быстрее, as the moisture in the fridge will cause the popcorn to become soft and lose its crispiness.

The best way to store popcorn is in an airtight container at room temperature. This will help to keep it fresh and crunchy for longer. If you do want to store popcorn in the fridge, be sure to put it in an airtight container and only keep it there for a few days.