Beer drinkers may be ingesting more than just alcohol, according to new research from the American Chemical Society. The study found that several beers in the United States contain levels of polyfluoroalkyl substances (PFAS) that exceed the safe threshold set by the Environmental Protection Agency (EPA). Often referred to as “forever chemicals,” PFAS do not naturally degrade and can accumulate in the human body over time, potentially causing serious health concerns.
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The research team, led by Jennifer Hoponick Redmon, adapted an EPA testing method to analyse 23 beers from regions known for PFAS-contaminated water, as well as others with less documented water quality. The findings indicated a clear correlation: beers brewed in areas with known PFAS pollution in their water systems contained higher levels of these substances. Redmon, herself an occasional beer drinker, expressed hope that the findings would spur improvements in water treatment and policy to reduce PFAS exposure through food and drink.
The study revealed that 95% of the sampled beers contained two of the most concerning types of PFAS: perfluorooctanesulfonate and perfluorooctanoic acid. Notably, beers from North Carolina, California, and Michigan showed particularly elevated levels. While breweries often filter their water, standard systems are not designed to eliminate PFAS. Beers imported from Holland and Mexico, in contrast, showed lower or negligible PFAS presence, hinting at regional differences in water quality and treatment.
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PFAS have also been found in bottled water and are used in everyday products such as non-stick cookware, food packaging, cosmetics, and pesticides. Although some forms have been banned, many are still in widespread use. Scientists warn that more comprehensive regulation and better filtration strategies are urgently needed to limit their impact on public health and the environment.
