This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility: Drinking this year's champagne might cause a heftier headache as France's record heat waves force some producers to increase alcohol levels, industry officials said Wednesday. French authorities have allowed Champagne houses to make their bubbly with alcohol content of up to 15%, a historic first for a wine usually limited to 13%.
Growers had to harvest exceptionally early this year as extreme heat sped sugar buildup—and, hence, natural alcohol production—in the grapes, according to the Comité Champagne industry association. Nonetheless, "the crop already has all the hallmarks of producing great, perhaps even exceptional, wines," the group said in a statement. Authorities have also allowed a temporary easing of strict rules for making several types of cheese after heat waves scorched grazing pastures.
France is the world's second-largest wine producer after Italy, and this summer's heat and drought have deepened fears among many growers about how they will cope with climate change. The 2026 harvest was the earliest ever recorded in the Champagne region, with the first grapes cut as early as Aug. 6 and harvesting becoming widespread on Aug. 17, two weeks earlier than in 2025, when it was already considered early, according to the association. Due to climate change, "this unusual harvest will probably become the norm in 10 to 15 years," said Maxime Toubart, the co-chairman of the Comité Champagne.
It "should prompt reflection on the Champagne of tomorrow," he said. Fellow co-chair David Chatillon said the relaxed alcohol-content rules would affect only a small number of growers. "The average after the harvest is below 12%," Chatillon said.
"Not all winegrowers in Champagne will be above that level." Master's in physics with research experience. Long-time science news enthusiast. Plays key role in Science X's editorial success.
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