Experts Tested Sandwich Bags That Most Americans Use — and 81% of Them Had ‘Forever Chemicals’
Published July 30 2025, 8:45 a.m. ET

A little girl is holding a plastic bag with a sandwich at school during lunchtime.
Components of plastic are everywhere - from the water you drink to the air you breathe. Especially, the ones known as PFAs, found in your pasta pan, some clothing material, lipsticks, and nail art, are dubbed “forever chemicals.” Ever since they emerged into this world, they haven’t stopped. They are slowly, subtly killing everything into a silent death, poisoning it little by little until it is fully invaded. And once invaded, these chemicals cannot be battled with. They are next to indestructible. Experts at the Mamavation blog tested 11 plastic sandwich baggies and discovered that most of them were laced with PFAS.

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Mamavation (@mamavation) is a blog founded by Leah Segedie to share content related to “empowering women through eco-wellness.” During this experiment, she and her team purchased eleven plastic sandwich baggies between December 2022 and February 2024. They recorded the details of each product in their database and dispatched them to a laboratory for testing. The tests were conducted in collaboration with an Environmental Protection Agency (EPA)-certified lab, commissioned by Mamavation.
“We found traces of organic fluorine in 81% of what we sent to the lab, including the ‘cleaner’ alternatives,” Mamavation wrote on Instagram. The first culprit, the scientists noted, was the outdated food safety measures set up by the FDA. Unless these measures were there, companies wouldn’t be able to make products that contain these “forever chemicals.”