A study published in Chemosphere found that 36 of 38 paper drinking straw brands tested contained detectable levels of PFAS. The study also showed that PFAS in the straws transferred into water that traveled through the straws.
Paper and other plant-based drinking straws are replacing plastic straws in commercial settings in response to trending plastic straw bans and the larger global movement for reducing plastic pollution.
The water-resistant properties of many plant-based straws may, however, be attributed to the use of per- and polyfluoroalkyl substances (PFAS) during manufacturing.