Method and apparatus for the quantitative determination of beer

Details Method and apparatus for the quantitative determination of beer Method and apparatus for the quantitative determination of beer

1979-03-05

1980-10-14

Kellogg, Arthur D.

Food or edible material: processes, compositions, and products

Measuring, testing, or controlling by inanimate means

250339, 250340, G01N 2126

Patent

active

042281920

ABSTRACT:
The ingredients of beer and/or wort, particularly alcohol, extract, wort and carbon dioxide are determined individually by passing infrared light through the beer where a wavelength between 2.9 and 3.1 microns is used for the alcohol ingredient, a wavelength between 9.6 and 9.8 microns is used for the extract or the flavorings, and a wavelength from 4.2 to 4.4 microns is used for the carbon dioxide ingredient, each absorption of infrared being measured and analyzed.

REFERENCES:
patent: 3161768 (1964-12-01), Goulden
patent: 3212854 (1965-10-01), Betts et al.
patent: 3539804 (1970-11-01), Billetdeaux et al.
"Infrared Absorption Spectra" by R. T. O'Connor, Journal of American Oil Chemist Society, Nov. 55, vol. XXXII, No. 11, pp. 628-633.

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