Maple sirup is the liquid food derived by concentration and heat treatment of the sap of the maple tree (Acer ) or by solution in water of maple sugar (mapel concrete) made from such sap. It contains not less than 66 percent by weight of soluble solids derived solely from such sap.
The downvotes are because he’s legally incorrect
https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=168.140