PFAS in food packaging is an important dietary exposure pathway that interacts with drinking water filtration in ways consumers should understand. Minimizing PFAS exposure requires addressing both pathways, and understanding how packaging PFAS enters the body helps prioritize interventions.
PFAS-Treated Food Packaging
Grease-resistant paper packaging — including microwave popcorn bags, fast food burger wrappers, pizza boxes, and some bakery papers — has historically been treated with PFAS to prevent grease penetration. These treatments can migrate from packaging into fatty foods during storage and heating. Consumer product testing has found elevated PFAS in foods packaged in treated materials, particularly when heated (microwave popcorn) or when food contact time is extended.
Regulatory Response to Packaging PFAS
FDA has accepted food additive petitions to no longer recognize certain PFAS as safe for food contact applications, effectively banning specific PFAS from new food packaging. Many major food companies and quick service restaurant chains have voluntarily committed to eliminating PFAS from their packaging. These transitions are underway but not complete — some packaged foods still use PFAS-containing materials as of 2026.
Connection to Water Filtration Strategy
Households implementing water filtration for PFAS are addressing the drinking water pathway but may still receive meaningful dietary PFAS from food packaging. Combining water filtration with avoidance of specific high-risk food packaging — microwave popcorn, frequently consumed fast food in paper packaging — provides more complete dietary PFAS reduction than water filtration alone. For households with infants preparing formula with filtered water, also avoiding PFAS-containing food packaging completes the dietary PFAS reduction approach for this highest-priority population.