Does anyone know if those "Bag In Box" wine things can lie on their sides once they have been opened? I realise you can't really use them in that state, but I only recently started to use them and have no real experience with them.

I hhave never bought a white wine because there is not enough room in the fridge for it to stand, thus I would need to lie it down, then take it out to use it.

What concerned me was the tap mechanism. Would a half full/empty BIB on it's side leak air into the bag thus ruining the whole thing?