Abstract 008
Routine Use of a Programmable Calculator for Computing Alcohol, Real Extract, Original Gravity, and Calories in Beer
J. Amer. Soc. Brew. Chem. 38: 27-33, 1980
K.J. Siebert
Formulae and a calculator program the accurately calculate alcohol, real extract, original gravity, and calories from either refractive index or immersion refractometer scale readings and either sp. gr. or apparent extract are explained. 2 alternate computational approaches are compared and contrasted with the use of tables. One such program has been successfully used with a programmable printing calculator for routine quality control for greater than 9 months. This has resulted in increases in speed, operator convenience, and accuracy.
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