Unplug the refrigerator
Remove all food, shelves, and drawers
Throw away spoiled or expired items
Wash shelves, drawers, and interior surfaces with warm water and mild dish soap
Clean spills and sticky residue thoroughly
Wipe the interior with a mixture of baking soda and water
Clean door seals and gaskets
Dry all surfaces completely
Place an open box of baking soda inside the refrigerator
Use activated charcoal or coffee grounds in an open container
Leave the refrigerator door open for a short time after cleaning
Check and clean the drip pan if accessible
Clean the drain hole if clogged
Store food in sealed containers
Keep strong-smelling foods tightly wrapped
Replace the baking soda regularly
Repeat cleaning if the odor remains