Pop Secret · Microwave Popcorn
Pop Secret Butter Microwave Popcorn
Likely contains PFAS grease barrier. Skip if concerned about food contact PFAS.
Microwave popcorn bags typically use fluorinated grease-resistant coatings to prevent oil leakage. Pop Secret does not disclose PFAS use or claim PFAS-free status.
The better-graded swap
Quaker
Quaker Butter Popcorn Rice Cakes
70/100 safety
Same rubric that flunked this product. The swap earned Good.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
greaseproof paper/film bag with moisture and grease barrier coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What Pop Secret Butter Microwave Popcorn is made of, ingredients and materials
Pop Secret bags use a multi-layer greaseproof paper construction with a fluorinated polymer or wax-based moisture/grease barrier coating on the interior surface. This barrier prevents butter oils from soaking through during storage and heating. The PFAS-coated type (which Pop Secret has not transparently disclosed) is designed to withstand microwave temperatures around 350-400F. When heated in a microwave, the coating surface can degrade slightly, increasing migration of barrier chemicals into the popcorn itself, particularly the buttered or oiled portions.
What’s concerning
Waterproof / stain-resistant treatment
Water-repellent coating treatments have historically used PFAS.
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
PFAS
Greaseproof coatings may contain other synthetic hydrocarbons or wax components; direct microwave heating increases migration risk into fatty foods like buttered popcorn, though quantities and toxicity are not well-characterized in published safety data.
Source, ATSDR ↗What’s reassuring
Microplastics
Pop Secret bags are primarily paper with polymer coating; no published evidence of microplastic shedding during normal microwave use, but coating degradation under heat stress has not been thoroughly studied for food contact safety.
Source, EPA ↗Bleach or processing residues in paper pulp
Paper bags may be chlorine-bleached; no specific recalls or safety alerts for Pop Secret related to paper pulp contaminants, and this is controlled under FDA food contact material standards for most U.S. brands.
Ink or print contaminants on exterior
Pop Secret bags have printed exterior graphics; inks should not contact food during normal use, and no documented migration issues specific to this brand have been reported.
The full breakdown
The brand's record and disclosure
Pop Secret, owned by General Mills, has not published transparent information about PFAS use in its microwave popcorn bags or committed to PFAS phase-out timelines. Industry testing by independent researchers and advocacy groups has identified PFAS in popcorn bags from major brands including Pop Secret, but Pop Secret has not publicly acknowledged or disputed these findings. The company does not market its products as PFAS-free or provide alternatives with non-fluorinated barrier coatings.
How it compares in its category
Most conventional microwave popcorn brands (Orville Redenbacher, Act II, Pop Secret) use similar PFAS-containing barrier coatings as an industry standard for grease resistance and moisture control. Some newer or premium brands market PFAS-free popcorn bags, though verification is limited. Stovetop popcorn, air-popped kernels, or bags explicitly labeled PFAS-free eliminate this exposure pathway entirely. Pop Secret is not uniquely risky within its category, but reflects broader industry reliance on PFAS for food contact applications.
If you buy it
Do not overheat bags or allow them to contact direct heat or flames; follow package microwave time instructions exactly to minimize coating stress and potential leaching. Do not reuse bags or store them at high temperatures. Consider eating the popcorn soon after preparation rather than storing heated residue in the bag. If PFAS exposure is a priority health concern for your household, switching to stovetop popcorn or verified PFAS-free brands is a straightforward alternative.
What we don’t know
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Pop Secret has made none
Formulations change between production runs, so check the current label. How we grade.
Better-graded alternatives in Microwave Popcorn
Quaker
Butter Popcorn Rice Cakes
- puffed rice cakes in paperboard packaging
- We found no PFAS statement from the brand
- Mold or bacterial growth in packaging
Trader Joe's
2 Packs Trader Joe's Synergistically Seasoned Popcorn 5.5 Oz Each Pack
- paperboard popcorn bag, grease-resistant interior lining
- We found no PFAS statement from the brand
- Moisture and mold risk if bag is compromised
Wabash Valley
Farms Sweet
- paper-based food packaging with standard coating
- We found no PFAS statement from the brand
- Ink migration (printing on exterior or interior)
3 hazards checked on this product. See all of them.
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.