Does PFAS contamination in food packaging exceed safety limits?

What's actually in it

Food packaging is treated with PFAS to make it grease-proof and water-resistant. You'll find PFAS in fast food wrappers, microwave popcorn bags, pizza boxes, takeout containers, and bakery bags. The PFAS migrates from the packaging into the food, especially when the food is hot or greasy. Every time you eat from these containers, you're ingesting a small dose of forever chemicals.

What the research says

A 2026 study in Chemosphere tested a wide range of consumer food packaging products for PFAS contamination. The researchers measured both targeted PFAS (the ones regulators typically test for) and total fluorine content (which catches PFAS types that slip through standard testing).

PFAS was found in many packaging products, with grease-proof papers and molded fiber containers showing the highest levels. Some products contained PFAS types that aren't even on the regulatory watchlist yet.

Under newer, stricter safety standards that have been adopted in some regions, several products exceeded the limits. The gap between what regulators consider safe and what scientists are finding in packaging is getting wider as we learn more about how harmful even low-level PFAS exposure can be.

The simplest way to reduce exposure is to transfer takeout food onto your own plates immediately instead of eating from the packaging. Avoid microwaving food in its packaging, and choose restaurants that use PFAS-free containers when possible.