Well.... in some situations yes. Not all canned foods will last close to 20+ years. Some... ehhh I could see but not that many. The best thing is to use your preps. Rotate them in and out. Keep them in a very organized manner that is easy for you and your family to use the closest dates first. Then make sure they are in an easy spot that can be accessible during a SHTF scenario. If you can't get to it in a short amount of time it wasn't worth stockpiling. And another good hint would be to store most at your BOL (Bug Out Location) if you have one. If you need anymore questions answered add me on Skype: WVTactics. We can chat about things sometimes. Good luck.