That's actually what the canned food industry says, too. The "Best By" date is only a suggested date to have the contents be "the best they'll be", (ie. freshest tasting, at their peak of flavor), etc.. It
doesn't mean that after that date..."they're bad", as in they're spoiled and will make you sick if you eat them. Not at all! They said specifically that the only canned food to absolutely discard at any time (before or after any date of any kind on the can)...are cans that have tops or bottoms that have a bulge to them, or cans that have visible rust on them.
There was a whole show on TV once, and the info. is online, too, about the "Best By", "Use By", "Sell By" designations...and what each
really means...healthwise to consumers.