Mike, I don't know if I can honestly answer your question about the thawing. One thing I should point out though is I only use the buckwheat or ant chaff inside the jaws and under the pan and use dry dirt for the rest. Once the temps get real cold (8-10 deg) I will be using waxed dirt, while still using buckwheat hulls and ant chaff under the pan. I'm no expert on the wax dirt making, and actualy have to buy it. I use it sparingly but this season has not been brutaly cold yet, and so far the glycol has worked. I would guess it thaws, but don't really know. I only have had 3 nights that froze my traps out (that's when I determined the 8-10 deg.), and I was ready for a move anyway.