New research finds that warm summers and wet winters yield better wine vintages

Published on October 9, 2023

Wine quality is notorious for varying from year to year, but what makes for a “good year”? A new study led by the University of Oxford has found that weather plays a critically important role in determining wine quality. By analysing 70 years’ worth of wine critic scores from the Bordeaux wine region in relation to that year’s weather, the researchers showed that higher quality wine is made in years with warmer temperatures, higher winter rainfall, and earlier, shorter growing seasons—conditions that climate change is predicted to make more frequent. The results have been published today in the journal iScience.
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