I just found a link to a nifty site where you can look up the shelf life of of the food in your stockpile, as well as just about anything you can think of: StillTasty.com

I ran through the search for a handful of items, coolio! I haven’t trusted the shelf life dates on food packaging since reading the lack of FDA regulations regarding them. (See my previous article about product dating.) The fact that there is an expiration date on WATER is a pretty strong indication that the shelf life marked on most food packaging is more about profit than anything else.

(I found the Still Tasty site in the resource list in Tim Ferris’ latest book The 4-Hour Body.)