Please follow these storage guidelines for maple products:
Keep unopened containers of maple syrup in a cool, dry place: the refrigerator or preferably the freezer. The delicate maple flavour is best preserved over a long period by storing in the deep freezer. Once opened, store tightly closed in the refrigerator or place the unused portion back in the deep freezer.
Maple butter should be kept in the refrigerator in a tightly covered container to prevent drying, or it may be covered with a thin layer of water. When storing for a long period it should be placed in the freezer.
Soft Maple Sugar
Soft maple sugar should not be kept longer than a week unless it is crystal coated. Crystal coated sugar will keep for up to two months when stored in a cool, dry place.
Hard Maple Candy
With an almost permanent shelf live hard maple candy does not require any special storage requirements. Like any hard candy it only needs to be protected from high humidity and moisture.
Granulated Maple Sugar
Granulated maple sugar has no available water so it's 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 loose its granular nature. Store it the same way as white sugar and don't worry about it hardening like brown sugar.