My 3 inputs to this thread:(posted 8630 days ago)1. I have read somwhere, in a reasonably trusted book, that you should in theory freeze film at 0C to -10C (err, 32F down to, erm, a bit less than this) I have tried comparisons myself with -10C and -20C (the difference between a refrigerator freeze draw and my large freezer) and I saw no difference whatsoever, but the test was only for few weeks.
2. I chill film in the fridge first before freezing it (in unopened original packing, supplemented by press-seal freezer-food bags to stop the boxes going mushy with condensation upon defrosting). I am a little paranoid, but I feel that -ve thermal shock might somehow stress a film. Also, it stops the freezer warming as it struggles to freeze down the 200+ 120-size rolls of APX25 you just dropped in it...
3. Gene, I'm not sure I fully understand the significance of your standard precaution of including pork chops :-)
PS - if you are freezing something like TMZ or D3200, why not slip it into those redundant x-ray bags you bought a few years ago? They are too heavy to carryanyways and delight perverted x-ray operators at London Heathrow Airport who insist on first emptying the whole bag then x-raying the contents upwards of 10 times in a row, all the time telling you that "X-rays don't harm film Sir, only magnets can do that" :-( These bags may stop some of the enviromental radiation that might fog these fast films stored for a couple of years past the use-by date.