10 Facts You Didn’t Know, About Maple Syrup.br In honor of National Maple Syrup Day on Dec. 17, br here are ten facts you may not have known.br 1. , Canada produces 80 percent br of the world’s maple syrup supply.br 2. , In Canada, syrup is broken down into fourbr hue-related categories: extra light (AA), light (A),br medium (B), #2 amber (C) and #3 dark (d).br 3. , The United States' system of syrup categories consistsbr only of a lighter grade a syrup and a darker grade b syrup. .br 4. , There’s an organization dedicated to maple syrup called thebr International Maple Syrup Institute. It was founded in 1975.br 5. , Commercial brand syrups are created withbr inexpensive ingredients such as high fructose cornbr syrup, cellulose gum and caramel coloring.br 6. , Roughly 40 gallons of sap are requiredbr to make 1 gallon of real maple syrup. .br 7. , Most syrup-yielding trees onlybr supply 5 to 15 gallons of sap per season.br 8. , In Hadong, Korea, locals have commonly been knownbr to consume over five gallons of maple sap in one sitting.br 9. , Rather than use the traditional tapsbr and buckets method, most North Americanbr operations use a system of tubing and vacuums. .br 10. , Alfred University, located in western New York,br offers an official maple production course.