Good-quality, 100% pure maple syrup is so good, but usually pricey. I like to buy a couple of jugs at a time, but I never knew how to store it properly. Turns out you should absolutely refrigerate it to keep it fresh for up to one year. Even better: if you freeze it, it keeps indefinitely. My suggestion: break medium to large jugs up into smaller containers. Put one in the fridge, and the rest in the freezer. Thaw smaller containers as you need them.