A few years ago, we moved into a new house. Our big freezer which our neighbor stored birds in after he went hunting, I clean and closed up for less than 24 hours. When we opened the freezer, it smelled horrible. We thought time would cure the problem and then I washed it out with baking soda, clorox, you name it and I probably tried it. My mother-in-law even told me she thought we were going to have to trash the freezer. Then I remembered a friend of mine who sold tupperware once told me that if your tupperware got a stinky smell to crumple newspaper in it and close it up. As a last effort to salvage the stinky freezer, I crumbled newspaper and placed in throughout the freezer...much to everyone's amazement, the smell was gone, never to return! So my suggestion is put it in a garbage bag with crumpled newspaper and see what happens. Now we and all our friends use crumpled newspaper to removed odors from everything...a lot of our friends love it for removing odors from their ice chests.