The expiration dates for canned food is often stamped on the top, bottom or the label of the can. Instead of expiration dates some cans list best-by and sell-by dates.
Canned meats like chicken and tuna and vegetables have a longer storage. This type of canned food can usually be safely kept in the pantry for 5 years. Highly acidic canned goods, including fruits and tomatoes have a shorter shelf life of 1 1/2 years.
If canned foods leak or begin to bulge they should be discarded. Likewise, if the food gives off a foul odor or has changed in texture and color it should not be consumed.