Not sure if this is the proper place for this but,
Has anyone checked out this guy's Youtube channel?
He gets MREs or various combat rations from all over the world and all eras and actually eats them. I've seen him try Civil War dated Hardtack, turn of the century tinned beef, all the way to the latest and greatest modern rations. And, he's only really gotten sick once. And that was from a modern ration that was still within it's servicable date.
Some here may not like the fact that he opens and essentially destroys collectable items but, it's very cool to see how well some of the stuff has held up. He is also very entertaining.