The why
Kirkland Microwave Popcorn. FDA completed voluntary PFAS phase-out in food packaging February 2024, with state level bans in California, Maine, and Washington reinforcing the move. Current production should ship with PFAS-free bag liners. Legacy retail inventory may still carry PFAS-coated bags, and replacement grease proofing chemistry has limited public toxicology data. The product itself is ultra processed: artificial flavor, palm oil, and the buttered bag and heat profile concentrates flavor chemistry not present in stovetop popcorn. Score reflects processing profile plus residual legacy inventory uncertainty rather than current intentional PFAS use. Ingredients verified 05 2026.