Storing Flow supers in winter

Hello again, although I’m not quite ready to remove the super I’m curious as to how our northern friends stored their Flow supers over winter.
Freezing the frames then sealing in plastic seems to be the recommended procedure but wonder about other ideas.
One of my thoughts is to get a plastic storage crate that will fit a complete Flow super and fill it with nitrogen to terminate any pests then seal it with tape.
Ideas? Thoughts?

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9 posts were merged into an existing topic: Wintering your Flow Hive / Flow Frames