A refrigerator door seal is one of the most common places where mold hides in your kitchen. If you notice condensation or blackish-brown mold around the door seal, it could be a sign that the door gasket is damaged and needs to be replaced.
A new door gasket can cost as little as $50 to $75, depending on the brand and model of your refrigerator. This is a very inexpensive, easy fix that will save you from spending more on your electricity bill and helping to keep your foods fresher.