How Do Wildfires Affect Wine? A New Study Finds Out

Posted: Mar 15, 2022

Can wildfires affect the taste of wine? Yes, according to new research. The latest study in how wildfires impact wine has found that smoke from the fires are causing a detrimental effect on wine grapes, leading to problems in the wine industry.

The research suggests that volatile compounds in the smoke from wildfires can be absorbed by grapes and produce an unpleasant taste known as “smoke taint” in wines made from affected grapes.

The study, led by scientists at University of California Santa Cruz and published in the Journal of Natural Products, provides data and guidelines for using analytical chemistry to identify grapes and wines affected by smoke taint. The data is based on an analysis of more than 200 samples of grapes and wine from 21 grape-growing regions in California and Oregon.

Lead author Phil Crews, research professor of chemistry at the university and winemaker and owner of a small winery said that the extent of the smoke taint problem came to his attention in the aftermath of the 2018 Mendocino Complex Fire, when large wineries began rejecting grapes from the affected region.

“What I discovered was that proper analytical data was not provided to figure out if the grapes or wines were affected by the smoke,” he said.

Crews found that the best research on the problem had been done at the Australian Wine Research Institute (AWRI), where researchers had identified an array of compounds that could be detected in affected grapes and wines and used as “biomarkers” of smoke taint. He also found that most US labs used by the wine industry were not performing adequate measurements. He designed the new study to apply the Australian methods to grapes and wines from California and Oregon.

“This research is highly valuable, with the potential to save countless dollars, and is increasingly relevant in our world of drought and climate change,” said Eleni Papadakis, a winemaking consultant, “I believe I speak for the whole of the winemaking community when I express the excitement and appreciation for the strong data and evidence-based guidance Professor Crews and his team have provided with this ground-breaking work.”

By New Food
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