PFAS (per- and polyfluoroalkyl substances) are a group of over 12,000 synthetic chemicals that don't break down in the environment — earning them the nickname "forever chemicals." They've been linked to cancer, thyroid disease, immune suppression, and reproductive issues.
Where PFAS Hide in Your Home
Non-stick cookware — traditional Teflon (PTFE) coatings are PFAS compounds. While manufacturers have phased out PFOA (the most studied PFAS), many replacement chemicals are structurally similar and poorly studied. See our air fryer safety comparison for specific product recommendations.
Food packaging — grease-resistant wrappers, microwave popcorn bags, and takeout containers often contain PFAS coatings.
Cleaning products — some stain removers, floor polishes, and waterproofing sprays contain PFAS for their water-repelling properties. Check our cleaning product safety guide for alternatives.
Cosmetics and personal care — waterproof mascara, long-lasting foundation, and dental floss have been found to contain PFAS.
How to Check for PFAS
PFAS are rarely listed by name on labels. Look for ingredient names containing "fluoro" — perfluorooctanoic acid (PFOA), polytetrafluoroethylene (PTFE), polyfluoroalkyl, or any variation. Our ingredient database flags all known PFAS compounds and their CAS numbers.
How to Avoid PFAS
The simplest approach: scan products with Rabbithole. Our ingredient analysis flags known PFAS compounds and PFAS indicators. Beyond that, look for products that are explicitly "PFAS-free" and choose stainless steel or cast iron cookware over non-stick coatings.
Avoid products labeled "water-resistant" or "stain-resistant" unless they disclose what technology achieves that property. For more on building a chemical-free kitchen, see our non-toxic home guide.