A method for spectroscopically determining the concentration of alcohols
with 1 to 5 carbon atoms, especially ethanol, in liquid probes, especially
alcohol-containing food products, healing preparations, cosmetic products
and the like. The absorption of light by the probe is measured at at least
one wave length in the range of 1100 nm to 1300 nm, and preferably in the
range of 1150 nm to 1250 nm. The alcohol concentration is determined from
the measured absorption with the help of a calibration. The alcohol
content of a liquid probe can be determined in a simple and fast manner
and over a large concentration range.
