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Abstract. Yields of sugar maple sap collected from three plastic pipeline systems by gravity, vacuum pump, and a vacuum pump with a transfer tank were compared during 2 years in northern Vermont.The transfer system yielded 27 percent more sap one year and 17 percent more the next year.Higher vacuum levels at the tapholes were observed in the transfer system.he transfer system yielded 27 percent more sap one year and 17 percent more the next year. Higher vacuum levels at the tapholes were observed in the transfer system.
Maple sap is reminiscent of water with the exception of its slightly sweet taste. It takes 55 gallons of maple sap to produce one gallon of maple syrup. The reverse osmosis machine separates water from water-soluble solids and can reduce the boiling process in half.rom the reverse osmosis machines the sap concentrate goes into the boiler. At this point it only takes approximately eleven gallons of the sap concentrate to create a gallon of maple syrup. Between the reverse osmosis process and the boiling, the sap goes from 2% or 3% sugar to 66% sugar in the final syrup.