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Unopened cans can last for 2 to 3 years. If the can is opened, that will only last about 3 days. If kept in an airtight container and in the refrigerator. once opened, it's best to eat the whole tin full. a tin is equal to, one small serving, not worth saving. good emergency food.
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoDepends on the manufacturing date (or canning date).
You can read on the bottom of the can the expration date and after that you add half a year more and it will still be good to eat.
Wiki User
∙ 12y agoforever.
ex. on a discovery show they found canned sardines in a WW2 bunker and deemed them perfectly edible
Wiki User
∙ 11y ago10 years
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