Some canned foods are supposed to have an "indefinite" shelf life. I would guess they're hedging their bets by just saying 30 years. I have personally eaten 20

Some canned foods are supposed to have an "indefinite" shelf life. I would guess they're hedging their bets by just saying 30 years. I have personally eaten 20 year old rolled oats that were not sealed in a steel can, and I did not die. If you think nuclear war is going to happen this month, you don't buy prepper food. But if you want something that can hang out at the back of a pantry for decades...