Just doing a quick check, I found all (most?) recipes listed by era.
Classic:
http://www.eqtraders.com/recipes/rec...r=080020020000 Edit: Seems this lists Vah Shir shaped cookies, so I'm guessing its not 100% classic.
Also Iron Rations lasted longer than rations, hence the only reason to buy them. Same with Fuzzlecutter Formula 5000 lasting longer than water flasks. As for the values of how long each lasted, I have no idea where you'd be able to find that info.