Originally published at Notes from the bunker…. You can comment here or there.

Someone asked about the shelflife of the FRH (Flameless Ration Heater a.k.a. ‘MRE heater’). The must-bookmark website, www.mreinfo.com , says five years. I just tried out one of my ten year old FRH’s. I think there was some decreased performance but not enough to be a concern…I would say that ten years is about the limit.