Keep Your Maple Products Fresh
To keep your maple syrup as fresh and tasty as possible over the longest period of time, you should keep unopened containers in a cool, dry place such as your refrigerator or even your freezer. Once opened, store your maple syrup in a tightly sealed container in the refrigerator, or place the unused portion back into the freezer.
Another popular treat, hard maple candy, has a near-permanent shelf life and does not require any special storage requirements other than protection from high humidity and moisture.
Granulated maple sugar is similar to brown sugar in that it naturally contains a little moisture and can harden when not kept tightly sealed. It is totally shelf stable and will not separate or mold. It can be stored indefinitely at room temperature and with proper packaging and moisture control will not lose its granular nature. (Read About Maple Recipies)