This question is asked quite often and the answer is no. During the boiling process most of the water is evaporated leaving thicker syrup with high sugar content. Maple syrup is 69- 70 % sugar. By putting your extra maple syrup in the freezer you can prolong its quality and flavor. When you need more syrup just place your container on the shelf for two to three hours and fill your everyday container-then return your larger jug to the freezer.