Testing sugar maple sap for sweetness with a refractometer

H. Clay Smith; George M. Keiser

Treesearch

Testing sugar maple sap for sweetness with a refractometer

Informally Refereed

Authors:

H. Clay Smith, George M. Keiser

Year:

1971

Type:

Research Note

Station:

Northern Research Station

Source:

Research Note NE-138. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 4p.

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Abstract

We 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.

Citation

Smith, 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.