Kirkland Signature · Parchment Paper & Baking Liners
Kirkland Signature Parchment Paper 2-Pack
Likely lower concern, but Kirkland discloses nothing; ask before buying if PFAS matters to you.
Parchment paper is traditionally coated with silicone or sometimes wax for grease resistance, which typically doesn't rely on Teflon-type coating or PFAS. Kirkland Signature makes no public statement about PFAS in this product.
The better-graded swap
If You Care
If You Care Parchment Baking Sheets
90/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Silicone-coated paper (presumed)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
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.
Waterproof / stain-resistant treatment
Water-repellent coating treatments have historically used PFAS.
Silicone coating degradation at high heat
Silicone is stable up to ~420-450°F under normal baking use. Above this, coatings may release volatile organic compounds or lose non-stick properties. Kirkland does not specify a temperature ceiling on packaging, which is a documentation gap.
Undisclosed processing chemicals in coating manufacture
Silicone coating application may involve residual solvents or catalysts that are not publicly disclosed by Kirkland. Food contact is regulated by FDA, but in-process PFAS or other fluorinated processing aids are not always listed on consumer packaging.
What’s reassuring
Bleaching agents or processing residues in paper substrate
Modern food-grade parchment paper is typically oxygen-bleached or ECF (elementary chlorine free) processed. No public recalls or safety warnings for Kirkland parchment paper on this basis are on record.
Migration of coating into fatty or acidic foods
Food-grade silicone is non-migratory under normal baking conditions (under 450°F, normal acidity). FDA regulations on food-contact silicone coatings are well established; no incidents reported with Kirkland parchment paper specifically.
Microplastic or fiber shedding into food
Parchment paper does not shed microplastics (it is not plastic) and fiber shedding into food is rare if the product is intact. Risk increases if sheets are torn, heavily reused, or stored in humid conditions.
The full breakdown
What it's made of and why it matters
Kirkland parchment paper is paper (cellulose fiber) coated with food-grade silicone. Silicone coatings are inert at typical baking temperatures (up to around 420-450°F) and do not leach into food under normal use. The paper substrate itself is processed to withstand moisture and heat without breaking down. Unlike older treated parchment (which used chlorine bleaching or other processing aids), modern food-service parchment is relatively well-regulated for direct food contact.
The brand's record and disclosure
Kirkland Signature (Costco's private label) does not publicly disclose material safety certifications, PFAS use in coating manufacture, or third-party testing for this product. Costco has faced minimal public scrutiny or recalls specific to parchment paper products. The brand does not advertise certifications such as FDA approval, EU compliance, or PFAS-free claims, leaving end-users without formal reassurance on processing chemicals used during coating application.
How it compares in its category
Parchment paper is inherently lower-risk than non-stick cookware (which can shed Teflon-type coating) or silicone baking mats (which may off-gas at high heat). Kirkland's product is typical of mass-market parchment, no distinctive safety claims and no transparency on PFAS in manufacturing. Competitors like If You Care (FSC-certified, chlorine-free) and Reynolds (widely available, FDA-compliant) offer comparable or slightly higher disclosure; Kirkland sits in the middle for transparency.
If you buy it
Use at temperatures below 420°F; silicone coatings can degrade and potentially off-gas fumes above this threshold. Replace sheets if they become visibly browned, scorched, or brittle, as coating integrity may be compromised. Do not reuse sheets if they touch raw meat or unwashed produce without washing first. Store in a cool, dry place away from direct sunlight to prevent coating degradation over time.
What we don’t know
- Basis
- Model estimate, 62% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Kirkland Signature has made none
Formulations change between production runs, so check the current label. How we grade.
Better-graded alternatives in Parchment Paper & Baking Liners
If You Care
Parchment Baking Paper
bleached paper with undisclosed grease-resistant coating
Coating degradation and leaching
Limited concern
Brand no-added-PFAS claim and a 2021 lab result with no fluorine detected.
✓Lab test found no PFAS
If You Care
Parchment Baking Sheets
bleached paper with silicone coating
Paper degradation and fragmentation
Limited concern
Brand no-added-PFAS claim and a 2021 lab result with no fluorine detected.
✓Lab test found no PFAS
If You Care
Parchment Baking Sheets
unbleached paper with silicone coating
Silicone coating degradation at high heat
Limited concern
Brand no-added-PFAS claim and a 2021 lab result with no fluorine detected.
✓Lab test found no PFAS
More parchment paper & baking liners 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.