A party of maple syrup have the right to be expensive—especially if you're buying that Grade A, entirely pure stuff—so there's no shame in wanting to know just how long syrup lasts. After ~ all, you desire to have the ability to use that maple syrup for as lengthy as possible. For this reason does syrup ever go bad? The quick answer is technically no, syrup does no expire and you can keep one unopened container of the ingredient on her shelf indefinitely. That's because of the high sugar content of pure maple syrup, follow to the professionals at Ben's street Shack, i beg your pardon produces syrup in new Hampshire. This is actually the same factor why honey never expires; bacteria have a hard time cultivation in these high-sugar, low-moisture environments.

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But one difference in between honey and syrup is that syrup can gain moldy ~ the container's to be opened, exposing the syrup come air. The an excellent news is that this mold isn't like the mold that ruins fruit; it's a completely different kind of fungus the doesn't impact the syrup. In other words, moldy syrup is still for sure to eat—but you need to remove the mold first.

The easiest method to remove mold from maple syrup, follow to the folks in ~ Epler's Maple Syrup, which renders maple syrup in Pennsylvania, is come skim turn off the layer of mold top top top. Then warm up the continuing to be syrup to its boiling point to death the offending spores. Let that cool a bit, skim off any mold that might still be lingering, and reheat that again. Then it's all set to go.

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Things room a little bit various if you're purchase pancake syrup, not pure maple syrup. Pancake syrup is often a type of corn syrup that's to be flavored. Lot like maple syrup, pancake syrup doesn't spoil. It's safe to eat for "an indefinite duration of time nevertheless of even if it is it has been opened," according to Karo, i beg your pardon manufactures both a pancake syrup and also several types of corn syrup. You don't need to store pancake syrup in the fridge, though. Room temperature is simply fine, yet if you're buying the ingredient that comes from a tree, be sure to save it in the refrigerator to avoid any type of moldy situations.