06/20/2025 / By Olivia Cook
Americans cracking open a cold beer would be shocked to discover that their favorite pint contains more than just barley and hops.
A new study has found that many popular beers in the U.S. contain per- and polyfluoroalkyl substances (PFAS). Commonly called “forever chemicals,” these toxic substances are linked to everything from cancer to reproductive issues.
PFAS are human-made chemicals used in everything from food wrappers, firefighting foam, nonstick pans to stain-resistant fabrics. They’re nicknamed “forever chemicals” because they don’t break down easily in the environment or in the human body.
According to researchers at RTI International, PFAS make their way into beer through the most basic ingredient of all – water. In a study published in Environmental Science & Technology, they outlined the results of their tests on 23 beers from both craft and commercial breweries in the U.S., as well as international brands.
The RTI researchers stumbled upon a concerning discovery: PFAS were detected in most of the beers they tested. Four even exceeded the new safety limits for water set by the Environmental Protection Agency (EPA).
Water makes up more than 90 percent of beer, and where that water comes from really matters. Many small and mid-sized breweries use municipal tap water in their brewing process. If that water source is contaminated with PFAS – as it is in many areas of California, Michigan and North Carolina – the beer brewed with it is likely contaminated, too.
One North Carolina beer tested in the study had a perfluorooctane sulfonate (PFOS) level of 6.2 parts per trillion (ppt), which exceeds the EPA’s 2024 drinking water safety limits of four ppt. Another beer from Michigan clocked in at 6.6 ppt of perfluorooctanoic acid (PFOA). Both PFOS and PFOA belong to the larger PFAS group.
RTI International Senior Director for Environmental Health and Water Quality Jennifer Hoponick Redmon, the study’s first author, pointed out that beer is more than just alcohol and flavor — it is also a window into the quality of the water used to brew it.
PFAS are associated with a laundry list of health concerns, including:
In fact, the Centers for Disease Control and Prevention (CDC) has found PFAS in the blood of nearly 99 percent of Americans. And because beer is the third most consumed beverage in the world – right behind water and tea – even low levels of PFAS in beer could increase total exposure.
Food scientist and industry consultant Dr. Bryan Quoc Le, who isn’t involved in the study, emphasized that the health risks linked to PFAS are serious – especially with long-term exposure. He noted that even if beer isn’t the primary source of PFAS, it still contributes to the overall toxic burden on the body.
One striking detail from the study is that smaller craft breweries – many of which are beloved for their authenticity and flavor – are especially vulnerable. Unlike large breweries that often have more advanced filtration systems, smaller operations typically rely on basic water treatment. That means they may not be filtering out PFAS at all.
And it’s not just the water. Packaging materials, brewing equipment and even ingredients like grains and hops could introduce small amounts of PFAS during the brewing process.
In 2024, the EPA announced the first ever enforceable limits on PFAS in drinking water. But here’s the catch: These rules won’t be enforced until 2029. In the meantime, utilities are not required to take action, even if PFAS levels exceed safety limits.
Water treatment facilities typically use standard filtration methods – like coagulation or sedimentation – that simply aren’t effective against PFAS. More advanced methods, such as activate carbon or reverse osmosis, do work. However, they are costly and difficult to implement at scale.
Until those protections are fully in place, consumers are left to fend for themselves. This might feel overwhelming, but knowledge is power. Here are some practical ways to protect one’s health while still enjoying a cold one:
While this study raises serious concerns about the presence of toxic forever chemicals in beverages, it also opens the door to awareness, advocacy and better consumer choices.
Watch this news report about the RTI study that explores how PFAS could contaminate beer.
This video is from the Daily Videos channel on Brighteon.com.
Scientists challenge WHO draft guidelines for PFAS in drinking water.
EPA doing “bare minimum” to address toxic PFAS pollutants in drinking water.
Study reveals a link between PFAS exposure and delayed puberty in girls.
Sources include:
Tagged Under:
beer, beer brewing, chemicals, clean food watch, contaminants, Dangerous, food science, forever chemicals, health science, PFAS, poison, research, stop eating poison, toxic chemicals, toxins, water health
This article may contain statements that reflect the opinion of the author