St. Louis is a city known for its beer.

A recent study indicates that some of the beer produced in the United States — including in St. Louis — contains polyfluoroalkyl and perfluoroalkyl substances, also known as PFAS or “forever chemicals.”

The study, titled “Hold My Beer,” was led by Jennifer Hoponick Redmon at research institute RTI International.

“We, essentially, were wondering whether the PFAS' presence in municipal drinking water at brewing locations influenced what was in the final beer that consumers were drinking,” Redmon said.

The answer to that question was yes. Redmon and her team found that areas with high concentrations of PFAS in their water also had higher concentrations in their beer. Beer is more than 90% water, and beer filtration isn’t meant to filter PFAS out. So

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