How long does "genuine" maple syrup (unopened, glass) last?

"Genuine" Maple syrup (unopened, glass) keeps 4 years in the pantry.

SHELF STABLE

Where	How long
Pantry, unopened	4 years

Times are for best quality when stored at safe temperatures, from the USDA FSIS FoodKeeper. Food kept frozen at 0°F stays safe indefinitely; the freezer time is for quality. Throw out cans that are bulging, leaking or badly dented.

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