KIRKLAND ORGANIC MARPLE SYRUP 1LMembers Mark Organic 100% Pure Maple Syrup is an all natural sweetener with a unique, exquisite flavor and rich, bourbon like amber color. Its made in the spring when cold, below freezing nights, followed by warm sunny days, stimulate the maple trees to give rise to generous sweet sap flows. Fifth generation master sugar makers boil the sap, evaporating up to forty gallons of raw sap to produce a single gallon of Members Mark Organic Pure Maple Syrup.