Can using a previously deep freezed film cause the gelatine to be more receptive to dust when hung to dry? I mean, can the gelatine be ruined for being exposed to such low a temp? The plastic canister isn't vacuum proof so a little air gets in anyway, at the factory ecc... I'm having a heck of difficulty trying to get slides and negatives as dust free as possible. I've found that when I'm using deep freezed films (-18°C) I have this problem. I hung them to dry in my bathroom previously hot steamed to get the dust down.