In this study (here) researchers used a nearest neighbours Machine Learning algorithm to build a classification model for brandy and cognac based upon Raman spectroscopy. The test is rapid and non-destructive. They reported good ability to discriminate spirits by age (differentiating “less than 5 years”, “5-7 years” and “more than 7 years”) and also clear discrimination of Armenian and Dagestanian spirits from those from the Russian Federation (excluding Dagestan). The authors hypothesise that this is because production standards in Armenia and Dagestan stipulate the exclusive use of local ingredients.
Photo by Nika Benedictova on Unsplash
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