Kirkland Signature · Parchment Paper & Baking Liners
Kirkland Signature 587346 Parchment-1pk Non Stick Parchment, 1 Pack, Clear
Lower-concern parchment; silicone coating avoids traditional PFAS-prone nonstick chemistries, but brand discloses nothing.
Kirkland parchment paper uses silicone treatment for nonstick properties rather than Teflon-family coating like Teflon-type coating, a design choice that sidesteps the most common PFAS route in food packaging. Costco makes no PFAS claim or third-party verification.
The better-graded swap
If You Care
If You Care Baking Paper, Parchment, 70 Square Feet
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-treated paper
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Kirkland Signature 587346 Pack, Clear is made of, ingredients and materials
Kirkland parchment is paper treated with a silicone-based nonstick coating rather than fluorochemical polymers like Teflon-type coating or PFOA-derived coatings. Silicone is a chemically inert polymer that does not break down into PFAS or volatile fumes at normal baking temperatures (up to 420-450 degrees Fahrenheit). The paper substrate itself is bleached cellulose, which poses no known toxicity risk when used as intended. This formulation presents lower concern than traditional wax-coated parchment (which can transfer paraffin wax traces) and does not rely on PFAS for its nonstick function.
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 oligomer leaching at high heat
Silicone coatings can release trace cyclic oligomers if heated above 450 degrees Fahrenheit repeatedly; risk is low at standard baking temperatures (350-420F) but increases with prolonged high-heat use or reuse of damaged sheets.
Coating degradation and particle shedding
Mechanical wear, creasing, or repeated exposure to wet ingredients can cause small areas of silicone coating to flake; while risk of ingesting visible particles is low, repeated microabrasion of the same sheet increases this possibility.
Non-stick coating transfer under pressure
Very little is known about whether silicone oligomers transfer to acidic or fatty foods that sit directly on parchment for extended periods; published data on this product specifically is absent.
What’s reassuring
Bleach residues in paper substrate
Food-grade bleached paper used in parchment is processed to remove residual chlorine compounds; no documented cases of Kirkland or silicone parchment releasing bleach byproducts into food.
Chlorine compounds from pulp bleaching
FDA-approved parchment undergoes dechlorination; no recalls or safety warnings for Kirkland parchment on this basis, and industry standards are considered adequate for consumer safety.
How is this PFAS grade calculated?
The brand's record and disclosure
Kirkland Signature (Costco's house brand) does not publicly disclose detailed chemical composition or third-party testing for parchment products. The brand has no documented safety recalls for this specific product and no known involvement in PFAS litigation. Costco has not issued formal statements on intentional PFAS avoidance in parchment; silence on this issue is typical across most parchment manufacturers. No independent certifications (NSF, FDA pre-approval, or Green Seal) are claimed on packaging based on available product information.
How it compares in its category
Silicone-coated parchment represents a lower-concern option between traditional bleached parchment and Teflon-family coating nonstick liners. Most major brands (Kirkland, Reynolds, If You Care, Primal Kitchen) now use silicone coatings rather than Teflon-type coating or legacy PFAS chemistries for this reason. Silicone parchment is slightly more expensive than wax parchment but more reliable; however, it offers no meaningful advantage over other silicone-coated brands. This product represents the current market standard for lower-toxicity parchment.
If you buy it
Kirkland parchment at temperatures up to 420 degrees Fahrenheit shows lower risk of degradation; above that, silicone can degrade and leach traces of oligomers into food. Replace the sheet if you see tears, discoloration, or tackiness, which indicate coating breakdown. Do not reuse excessively greasy or wet sheets repeatedly, as moisture can compromise the silicone layer over time. Store in a cool, dry place away from direct heat or sunlight to preserve coating integrity.
What is not known about PFAS in this product?
- Basis
- Model estimate, 72% 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.
What are the PFAS-free alternatives to Kirkland Signature 587346 Parchment-1pk Non Stick Parchment, 1 Pack, Clear?
- silicone-coated parchment paper
- The brand calls it PFAS-free, which we have not verified
- Paper degradation and particulate shedding
- unbleached paper with silicone coating
- The brand calls it PFAS-free, which we have not verified
- Silicone coating degradation at high heat
- bleached paper with silicone coating
- The brand calls it PFAS-free, which we have not verified
- Paper degradation and fragmentation
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.