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Analysis of plastic residues in maple sap and syrup collected from tubing systems sanitized with isopropyl alcohol

A plastic tubing system operated under vacuum is usually used to collect sap from maple trees during spring time to produce maple syrup. This system is commonly sanitized with isopropyl alcohol (IPA) to remove microbial contamination colonizing the system during the sugar season. Questions have been raised whether IPA would contribute to the leaching of plastic residues in maple sap and syrup coming from sanitized systems.

Product Demo: Boiling on a Lapierre Hyperbrix rig with 35 percent concentrate

Today we are at the UVM Proctor Maple Research Center in Underhill Center, Vt. with center director Dr. Timothy Perkins, Jean Francois Goulet of Lapierre Equipment and Proctor’s Abby Van Den Berg, boiling on a Lapierre HyperBrix system with 35 percent concentrate. The new technology takes out 2/3rds of the water from the sap before it hits the evaporator. Lapierre donated the equipment to the Proctor center to support research. Van Den Berg’s findingsÑfollowing a blind taste test last fall with a group of volunteersÑ found there is no noticeable taste difference between syrup produced in a high brix process vs. conventional syrup.