PFAS score
Kirkland · Microwave Popcorn
Kirkland Microwave Popcorn : 3.3 oz
Higher caution due to grease-resistant coating; Kirkland silent on PFAS disclosure.
Kirkland microwave popcorn bags use greaseproof lining typical of this category, coatings on food packaging commonly contain PFAS as grease repellents. Kirkland makes no public statement about PFAS in this product. No third-party verification or lab data is publicly available to confirm or rule out presence.
The safe swap
Pirate's Booty
PIRATE'S BOOTY Aged White Cheddar Puffs
70/100 safety
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
paper bag with grease-resistant coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Waterproof / stain-resistant treatment
water-repellent coating treatments have historically used PFAS.
Category baseline
food packaging is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 62% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Microwave Popcorn
Pirate's Booty
Aged White Cheddar Puffs
Paper/paperboard bag with standard interior coating (likely wax or clay-based)
Lower concern for PFAS in the product itself; standard snack packaging uses common coatings without known PFAS, but brand discloses nothing.
⚠Risky category by default
Trader Joe's
World's Puffiest White Cheddar
paperboard / kraft paper bag
Lower concern for typical snack packaging; no red flags, but limited visibility into bag treatment.
⚠Risky category by default
Whole Foods 365
365 by Whole Foods Market Organic Extra Virgin Olive Oil Popcorn
Paperboard popcorn bag with standard internal lining
Lower-concern choice; no known PFAS triggers, but bag lining composition unspecified.
⚠Risky category by default
More microwave popcorn grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.