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Polish researchers have published a paper on the development of rapid, simple, and non-destructive analytical procedure for discrimination and authentication of whiskies originating from Scotland, Ireland and USA  as well as time of maturation (two, three, six and twelve years). Combination of data from Fourier Transform Infrared Spectroscopy (FTIR) with statistical analysis was used to construct eight discriminant models. The models obtained permitted whiskies from Scotland, Ireland, and USA to be distinguished from each other, and 2 and 3 years old beverages from 6 and 12 years old whiskies. Results show that 100% of samples were correctly classified in models discriminating American and Scottish whiskies or 2-year-old and 6-year-old American whiskies. American whiskies were classified correctly in all models, which may suggest its considerable chemical difference compared to whisky produced in Scotland or Ireland. 

  Read the full paper here

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