That all depends what types of comb they are and what they were used for. Extracted honey frames, if you let the bees clean it off outside, it is of no interest to mice and moths. If its brood comb, freeze it, or store it in para-moth to keep things out of it.
This is how I store all of my empty frames.
There are 25 frames per rack level and the bees clean them all.
Each rack slides out for removal.
On warm days in the winter I have seen them cleaning the pollen out of the frames.
No mice or wax moth damage. I had 3000 frames stored this way last winter and the only thing I had to contend with was wasp nest between some frames.
You can find them at Home Depot or Walmart. They hold 22 super frames, or 10 deep and 12 medium frames. The lids snap tight keeping insects out. They are stackable. The clear plastic lets you see what is inside.
Take a frame with you to the store and you'll find something that works - just make sure it has a latching lid that will stay tight even when stacked. They are not ideal for large scale beekeeping but for a hobbyist who needs something for the garage they work well.
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