Maple Syrup Details: A standard serving size is about 2 fl oz. A half-gallon has 64 fl oz. The choice of color/flavor is strictly a personal choice. The darker color syrup has a slightly stronger flavor, but the amber color is our best seller. We ship by USPS flat rate boxes; two jugs fit perfectly and ship for free. Odd quantities require an additional cost of $9.95. Maple syrup must be refrigerated after opening but it can also be frozen for indefinite storage!