Because I live in a hot, humid climate and am concerned about feed quality deteriorating in the heat and about mold growth we just decided that our ugly but functional porch fridge* is not going out to the side of the road** in next week's move but is going to be stowed in the back of the workshop with the intent of using it as a combination egg fridge and feed fridge once we build it a new "porch" attached to the new coop.
It should be quite vermin-proof and mold-free.
*Until I moved to the south I didn't know about porch fridges. Very handy for holiday leftovers and garden surplus.
**In my area there is no need to haul a used appliance to the dump. Put it by the road with a sign that says "It Works" and someone who wants a porch fridge will pick it up within a few days.