will it harm you, vs does it still meet marketing criteria ? if the can is undamaged, the "best before" date has little to do with safety. how the items were

will it harm you, vs does it still meet marketing criteria ? if the can is undamaged, the "best before" date has little to do with safety. how the items were stored is likely more important. ive eaten 7 year old canned seafood from pantry shelf, but i would probably use "sun meat" bulge, or corroded cans for bait.