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A 2025 study found associations between some chemical measurements and consumer ratings for a small set of white wines, but it does not show that a chemical profile causes a high score or can tell an individual what they will enjoy. The researchers combined wine chemistry with Vivino app ratings to explore the relationship—not to build a proven wine-quality detector.
What the researchers measured
According to Chemistry World’s July 18, 2025 report, researchers in Denmark and Germany analyzed 89 white wines. Sixty-four had user scores on Vivino, where ratings are submitted on a five-point scale.
The researchers trained a machine-learning model using mass and infrared spectra. The measurements included information on 145 volatile organic compounds identified in the air above the wines, as well as ethanol concentration, density, sugar content, and acids. The study is identified in the report as Hjertholm et al. (2025), published in Food Chemistry, DOI 10.1016/j.foodchem.2025.145376.
Which compounds were associated with ratings?
The report says certain esters correlated with lower-rated wines. Some terpenoids, reducing sugars, and lactic acid appeared associated with higher consumer ratings. These are relationships observed in the dataset, not evidence that adding or removing a compound would change a wine’s score.
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A rating can reflect many influences beyond measured composition. The presence of a compound does not guarantee a high score, and the absence of one does not determine that a wine will be disliked. Nor does an association in app ratings establish what a different group of tasters would prefer.
Can AI tell which wine tastes better?
Not on the evidence reported here. The model explored links between chemical measurements and app scores for 64 wines with ratings. Chemistry World’s account does not provide the model architecture, validation design, rating distribution, or predictive performance. Without those details, the result should not be treated as a reliable ranking tool, a validated bottle recommender, or a universal measure of wine quality.
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There is also a difference between explaining patterns in the available sample and predicting ratings for wines or people the model has not seen. The report does not establish that the model can do the latter—or that a chemical profile can predict whether a particular person will like a bottle.
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A separate 2024 paper, “Causal Artificial Intelligence Models of Food Quality Data,” examines Portuguese Vinho Verde samples assessed by professional tasters. That work uses a different dataset and evaluator from the 2025 study’s white wines and Vivino consumer scores; its results should not be combined with this study’s findings. The paper is available at DOI 10.1016/j.foodchem.2024.139911.
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Consumer app scores, expert ratings, sensory panels, and chemical measurements capture different kinds of evidence. A chemical measurement describes composition; a consumer score records users’ judgments; expert and panel assessments come from their own evaluators and methods. One type of evidence is not automatically a substitute for another.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What researchers suggested testing next
The researchers proposed that future versions could incorporate review-text analysis, expert ratings, and sensory analysis. These were suggested additions, not capabilities demonstrated by the reported study. Combining them could provide a broader picture, but the report does not establish that such a system has been built or validated.
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