[T.G]

There are no absolutes or "givens" Michael. I've had plenty of tupperware that doesn't seal worth a crap, and I have a few of the logo humidors that seal fine.

They are both cheap solutions, neither is perfect.

One of the things about the logo humidors that it seems most people don't realize or take into account is that, like many mass produced humidors, they are not sealed on the bottoms. It's simply a patch of felt glued to the MDF. Placing them on a porous surface, such as a wooden counter, will allow significant area for transfer. Placing them on glass, sealed tile or a sheet of plexiglass will significantly reduce this issue.

The other common place they can leak is the lip seal on the lid. Granted, some of them are very poorly fitted, but five seconds with some masking tape will usually take care of this. You can also go through the effort of removing and re-seating the lip if you so desire.

Practically, that's really the only places they can leak in service. If they have gaps in the lid or splits in the side seams, you should have sent it back upon receipt to CI for replacement.

I've never understood people's obsession with tupperware for cigars. Sure, fine for short term storage, but no air transfer = recipe for mold and soggy cigars in long term storage since they can seal too well.

Oh, and due to the lack of breathing, storing a mixed collection of ACIDs in a tupperware is not really a good idea unless you want them to all end up tasting the same and nothing at all like what Jon had intended because of the sealed environment, the stronger ones will affect the milder ones.