Student Work

Evaluation of Ethanol Measuring Techniques

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The goal of this project was to determine a methodology to accurately measure the percent ethanol of the beverages produced by Wachusett Brewery. Based on gas chromatograph tests, it was determined that using propanol as an internal standard and a Chaney adaptor provided accurate results. In addition, using a vial with a septum cap prevented ethanol evaporation from the sample and 597 Qualitative Filter Paper decarbonized the beer without absorbing ethanol. From the developed methodology using a gas chromatograph, Wachusett IPA was determined to be 5.2% ABV. Due to the multicomponent nature of beer, a density measurement, provided by a hydrometer and digital density meter, was not an accurate method to determine alcohol percent in Wachusett Brewery’s beverages.

  • This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.
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  • E-project-042515-125216
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  • 2015
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  • 2015-04-25
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Permanent link to this page: https://digital.wpi.edu/show/js956h13z