I'm a pretty firm believer in keeping all metal parts cold, and will continue to take the risk of a small amount of expansion, but there is certainly merit to what you say. If I didn't have the available room in my freezer, I'd use the rice method. Dry parts are good parts. :)
Nice Franks
Keeping your grinder plates and blades in a container of rice will keep moisture off and from rusting.
Keeping your parts in a freezer makes them shrink and when in use they expand thus causing pressure on the blade against the plate and the auger against the winding in the tube.
Ok to my corner now.