AI can tell which chateau Bordeaux wines come from with 100% accuracy

Wines really are given a distinct identity by the place where their grapes are grown and the wine is made, according to an analysis of red Bordeaux wines. Alexandre Pouget at the University of Geneva, Switzerland, and his colleagues used machine learning to analyse the chemical composition of 80 red wines from 12 years between 1990 and 2007. All the wines came from seven wine estates in the Bordeaux region of France. "We were interested in finding out whether there is a chemical signature that is specific to each of those chateaux that's independent of vintage," says Pouget, meaning one estate's wines would have a very similar chemical profile, and therefore taste, year after year. To do this, Pouget and his colleagues used a machine to vaporise each wine and separate it into its chemical components.