Question – when you have purchased used appliances in the past, were they from individuals, or used appliance businesses? Each used appliance we’ve purchased has come from an excellent used appliance place in our little town. They provide a guarantee which, amongst other things, ensures that no uninvited “guests” come along for the ride. If you have a used appliance place in a nearby town, perhaps check with them on whether they offer a similar guarantee. Or, perhaps put it in quarantine (some outside covered location?) and ensure it’s bug-free before moving it inside. Knowing how much new fridges are, I’d hate to see you go that route if you don’t have to. On the other hand, if you have your heart set on that new fridge, that’s another issue entirely. But if the only thing keeping you from a used fridge is a bug concern, the bugs can be dealt with in advance one way or the other. Just a thought……..