I'm bumping this thread to see if anyone has any information but perhaps missed this thread first time round. I've just been defrosting the darkroom fridge and contemplating the future of the Ilford FB Warmtone paper I had in there. I don't mind losing the 5x7, but I'd sure hate to lose the 11x14 if there is a chance it remains OK. It is several years old now and has been in the fridge since bought. It remains sealed in its original packaging (packs of 10 sheets), but I haven't done any printing for maybe 4 or 5 years, whereas the Ilford information sheet on their website suggests a remarkably short 2 year shelf life when properly stored. I'll obviously get round to trying it, but would value others thoughts/experiences meantime.