I saw the String cheese post so I thought I'd share my own "slightly beyond best before date" consumable. I used to have two of them that I had found in my attic under some insulation, but the other one froze in my garage and broke open. (No, it did NOT smell pleasant. I'm pretty sure whatever vile liquid is in that thing does not resemble beer in any way, shape, or form.)
It's perched on a flashlight to try and show the sediment that's built up on the bottom of the bottle.
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Dubbels and Tripels etc are examples of what I said - bottle conditioned. And sure, other beer spoils, but it doesn’t age in a bottle in the same way as it can be aged in a barrel. Spirits like whiskey certainly don’t either since the barrel aging is really about contact with charred wood.