This application note has demonstrated both the qualitative and quantitative use of Raman spectroscopy. Calibration curves can easily be created using band information from Raman spectra allowing the quantitative evaluation of ethanol % for whisky authenticity testing. Qualitatively, the excellent chemical discrimination of Raman was used to identify the illicit presence of methanol in a whisky sample. All samples can be analysed rapidly making Raman spectroscopy an ideal technique for ensuring whisky is being sold safely and legitimately.