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Testing sugar maple sap for sweetness with a refractometerAuthor(s): H. Clay Smith; George M. Keiser
Source: Research Note NE-138. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 4p.
Publication Series: Research Note (RN)
Station: Northeastern Research Station
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DescriptionWe studied the consistency of refractometer sugar readings as influenced by sap evaporation, temperature, and the drying, cleaning, and calibration of the instrument. From the study results, we suggest field procedures for using the refractometer to insure reliable measurements.
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CitationSmith, H. Clay; Keiser, George M. 1971. Testing sugar maple sap for sweetness with a refractometer. Research Note NE-138. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 4p.
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