It works!
The refrigerator oder problem I have isn't due to food - it's a refrigerator used mainly for water, items in jars etc. and the smell is just a nasty, indescribable appliance oder that resists cleaning and boxes of baking soda.  Rolling it outside and letting it sit open in the sunshine isn't an option.  So I tried this stuff.  It's a neat little plastic container with slits in it that contains  a crystalized something. I can't say that the old fridge smell is totally eliminated - but it's very, very much better so I have to count the product as a success. Try it for your inexplicably stinky fridges.  It'll help.
Rating: 4 stars