Noticed recently that even sealed tins (Peas, broad beans etc) have "Use By" dates on them!
Many years ago, meat (the contents of a tin retrieved from Shackleton's expedition, was eaten, inadvertently, by the lab assistant. He thought that it was his lunch, and reputedly said that it tasted good.
In a long life, I have only met one tin that was "blown", and that was a few weeks ago.
Several years ago, drank a bottle of french beer that was two years out of date, without any obvious ill effects, and am still here to pester all the readers.
Can you understand my cynicism about "Best Before" and "Use By" dates?
Howard