Don’t overload the refrigerator – cool air needs to be able to circulate around and between items for the machine to do its job. The door racks are the warmest spot; use them to store things that wont easily spoil, like condiments.
A Sweet-Smelling Fridge
The classic box of baking soda in the fridge and freezer still works, but there are other ways to absorb odors:
(1) Fill a plastic tub with active charcoal (from a pet store), poke holes in the lid, and seal tightly.
(2) Leave a half-cup of ground coffee in a bowl on a center shelf for a few days.
(3) If you’re deodorizing after cleaning out the refrigerator, try leaving a bowl of clay cat litter inside the empty fridge for 24 hours.