Anyone know how long bottled, unopened maple syrup lasts? Found a little stash from last year! TIA

If it was refrigerated or in a cool place, it's usually good for a year and a bit. A thin

layer of mold on top is harmless and can be spooned off; boil the syrup and put it in a clean bottle.

 
real maple syrup should be fine, once it is opened will mold, but that will be obvious. t

 
It keeps for years. We make maple syrup and have kept a "library" for comparison.

We've sampled older syrup as old as 5 or 6 years, and it's fine.

 
Thanks all. Just tried some. I had forgotten how delicious something as simle as maple syrup can be!

 
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