Unique full diameter near-infrared analyzer measuring ethyl alcohol in breweries.

Teass, H.A., Byrnes, J. and Valentine, A.

Abstract
The McNab "KSA" on-line near infrared ethanol sensor is described. Test results are presented which show that (unlike previous instruments of this type) its accuracy is not significantly impaired by variations in the colour, haze level or residual sugars content of the beer, and therefore can be used with a succession of different brands without needing to be recalibrated for each one.
Keywords : analysis beer ethanol NIR spectroscopy on-line