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It is also worth noting that with some insects, if you want to kill them by
freezing, you have to freeze them, thaw them out and then refreeze.
Cockroaches for instance can regulate thier body through being deep frozen,
but thawing them and quickly refreezing seems to confuse this system, and
kills them. We had a demonstration a few years ago of different methods,
and this was mentioned then.

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