I am probable one of the few guys here on TBR that has never once had an MRE meal... I would of imagined the heating part was about the same as those "hot hands" packets that hunters use in Winter... but seems adding water means it was "something" (pun intended) else...
I have heard good and mostly bad from those that have had MREs.... but survival is survival (beggars can't be choosers). I just keeps extra cans of soup and stuff instead of MREs... and a twig cooker.