So you have a bottle of maple syrup sitting in the cabinet for a few years now. Or maybe there’s an open bottle of maple syrup in the fridge that’s there for at least a few months. In both scenarios the question “does maple syrup go bad?” inevitably comes up.

You’ve found an old chocolate bar that’s a few weeks (or months) past its date. Now you wonder: does chocolate go bad? Or maybe you’ve opened a fairly new bar and noticed that it has some grey streaks. And you’re not quite sure if that chocolate is safe to eat, or should you toss it. […]