I've used frozen B&W film (T-max 100) that was 5 years out of date with good results. Infrared film will last maybe 1 1/2 to 2 years past its data with acceptable results. Beyond 2 years major fogging occurs. I store all of my film in the freezer along with the pork chops as a standard precaution. Let the film warm-up for 2-3 hours before opening the box.(posted 8732 days ago)