Abstract: The present invention provides a low-cost, easy-to-use, and accurate method and apparatus for determining alcohol content in a test sample, such as wine. The method for alcohol content determination includes the following steps. A known quantity of a test sample is provided. A measurement of electrolytic conductivity EC0 of the test sample is taken. Next, a known quantity of conductive additive with known composition is added to the test sample to produce a first solution. A measurement of Electrolytic conductivity EC1 is taken for the first solution. Data representing predetermined values for EC0 and EC1 with corresponding known alcohol concentrations is provided for comparison. The electrolytic conductivity values for EC0 and EC1 are cross-referenced against the known data to determine a value for the alcohol concentration of the test sample. In addition, the values for EC0 and EC1 are adjusted for temperature and other variables.

Abstract: The present invention provides a low-cost, easy-to-use, and accurate method and apparatus for determining alcohol content in a test sample, such as wine. The method for alcohol content determination includes the following steps. A known quantity of a test sample is provided. A measurement of electrolytic conductivity EC0 of the test sample is taken. Next, a known quantity of conductive additive with known composition is added to the test sample to produce a first solution. A measurement of Electrolytic conductivity EC1 is taken for the first solution. Data representing predetermined values for EC0 and EC1 with corresponding known alcohol concentrations is provided for comparision. The electrolytic conductivity values for EC0 and EC1 are cross-referenced against the known data to determine a value for the alcohol concentration of the test sample. In addition, the values for EC0 and EC1 are adjusted for temperature and other variables.