Put a 5 lb bag of charcoal, half in fridge and freezer for 7 days. Odor will leave never to return! (Fivespeed)
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Take small open container and put 2 to 3 tablespoons of fresh coffee grounds in it. Place this in your refrigerator or freezer. It will remove the odors and not leave an odor behind. This seems to work permanently by my experiences. Sometimes rinsing the inside with a baking soda solution helps, you can even use the coffee grounds to deodorize plastic bowls. (Barbara)
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Box of baking soda left opened may work to absorb odors also. (Wendy)