Do disposable paper cups contain PFAS chemicals?
Yes. Recent peer-reviewed research confirms that food-contact paper products, including disposable cups, are a source of PFAS exposure.
What's actually in it
Disposable paper cups aren't just paper. To keep your coffee from turning the cup into a soggy mess, manufacturers coat them with liners. These liners often contain PFAS (per- and polyfluoroalkyl substances), which are synthetic chemicals used to make materials resistant to water and grease.
These chemicals don't stay put. They can move from the cup into your hot drink. Because they are linked to health issues, they are often called forever chemicals because they don't break down easily in your body or the environment.
What the research says
A 2026 study in Sci Total Environ confirmed the presence of PFAS in commercially available food-contact paper products. This research highlights that these items are a direct source of exposure to these harmful substances.
The risks associated with these chemicals are significant. According to a 2026 study in Int J Mol Sci, PFAS burden the liver and break down mitochondria, which are the power plants of your cells. This peer-reviewed science shows that these chemicals outpace modern regulation, meaning you cannot rely on current industry standards to keep them out of your cup.
Furthermore, a 2026 study in Environ Pollut found that when PFAS are mixed with microplastics, they can trigger inflammatory responses in your immune cells. When you use a disposable paper cup, you risk ingesting these chemical mixtures every time you take a sip.
The research at a glance
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