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By Jen Dickman, Erika Schreder, and Nancy Uding

New testing indicates major fast-food chains are still serving up PFAS (per- and polyfluoroalkyl substances) with some of their most popular takeout foods, despite increasing consumer demand and legislative action to phase out the use of toxic PFAS chemicals.

The testing included a total of 38 food packaging samples from 3 states in 16 locations and 6 fast-food chains. Nine out of the 38 samples were replicates, resulting in a total of 29 unique sample items for comparison. The testing of total fluorine to screen for the presence of PFAS was performed by an independent laboratory in February 2020. The study was conducted by the Mind the Store campaign and Toxic-Free Future.