Canned goods expiration date?

No. A few months, yeah.

as long as the can's not bloated its good

like..if you were living in a super wal mart over a period of time

Ya, just wondering how long the food will actually last with modern preservatives and canning.

The steamboat Bertrand was heavily laden with provisions when it set out on The Missouri River in 1865, destined for the gold mining camps in Fort Benton, Mont. The boat snagged and swamped under the weight, sinking to the bottom of the river. It was found a century later, under 30 feet of silt a little north of Omaha, Neb.

Among the canned food items retrieved from the Bertrand in 1968 were brandied peaches, oysters, plum tomatoes, honey, and mixed vegetables. In 1974, chemists at the National Food Processors Association (NFPA) analyzed the products for bacterial contamination and nutrient value. Although the food had lost its fresh smell and appearance, the NFPA chemists detected no microbial growth and determined that the foods were as safe to eat as they had been when canned more than 100 years earlier.

LINK

Expiration dates are only a suggestion.

Once while on a duck hunt I found a pack of M&M's in my blind bag that had to be 5 years old at least. Nothing was flying so I called the 800# on the package and talked to the customer service folks. I told what I had and asked if it was safe to eat. Of coarse they said not to eat it to be safe side. We ate the candy and two more that I found.

I know it's not canned food.
To

Expiration dates are based on company testing. It is good for much longer, but the official data doesn't exist to prove it. You have to protect yourself from ambulance chasing lawyers so you test and set an expiration date.