I just picked up a non-working chest freezer on Craig's List which I plan to use to brumate my two CDTs. The size is perfect and the price was right (free), but it smells. There was meat in it when it stopped working. The seller cleaned it well but there is still an odor. Any idea of a way to clean and sanitize? The torts will be in boxes within the freezer, which will be cracked open, but I don't want their poor little noses inhaling stinkiness all winter.