Is Kirkland Signature PFAS-free?
Across 13 graded products, Kirkland Signature averages F (32/100). On disclosure, the brand says nothing publicly about PFAS. 2 of its products grade C or better. Grades are model-based estimates, not lab results.
Worth buying from Kirkland Signature C or better, safest first
Kirkland Signature
Plastic Wrap 11-7/8 x 750', 2-Pack
Polyethylene (PE) film
Lower PFAS concern, standard PE cling wrap rarely requires fluorinated treatments, but Kirkland makes no transparency claim.
⚠Risky category by default
Kirkland Signature
All Purpose Cling Film
PVC (polyvinyl chloride) film
Lower concern; standard PVC cling film carries minimal PFAS risk, but Kirkland makes no transparency claims.
⚠Risky category by default
Graded and flagged D and F, we’d swap these
Kirkland Signature
Plastic Food Wrap
PVC or polyethylene film with undisclosed release agent/coating
Skip until composition is transparent, plastic wrap coatings often hide PFAS but Kirkland doesn't disclose.
⚠Waterproof or stain-proof treatment
Kirkland Signature
Stretch Tite Plastic Food Wrap
Polyethylene (PE) film with slip/stretch coating
Standard plastic wrap with unknown slip treatment, lower concern than nonstick cookware, but coating composition not disclosed.
⚠Waterproof or stain-proof treatment
Kirkland Signature
12" Plastic Food Wrap, 3000 ft
Polyethylene (PE) plastic film with slip/release agent
Lower PFAS concern but no transparency; standard PE wrap likely safe unless slip-coat is undisclosed.
⚠Waterproof or stain-proof treatment
Kirkland Signature
Signature Food Wrap Stretch-Tite Premium Size: 12
polyethylene film with unknown moisture/grease barrier coating
Skip, standard food wrap likely treated with fluorinated polymer; no PFAS disclosure or testing.
⚠Waterproof or stain-proof treatment
Kirkland Signature
Signature Plastic Food Wrap - 6000 Sq. Ft (2 Pack, 12" X 3000 Sq. Ft
polyethylene (PE) with unclear slip/release coating
Proceed with caution, common plastic wrap category, but coating chemistry undisclosed.
⚠Waterproof or stain-proof treatment
Kirkland Signature
Non Stick Parchment Paper
paper with non-stick/grease-resistant coating (type unspecified)
Skip until Kirkland discloses the non-stick coating chemistry, parchment's grease resistance typically relies on fluorinated treatments.
⚠Waterproof or stain-proof treatment
Kirkland Signature
Parchment Paper 2-Pack
Silicone-coated paper (presumed)
Likely lower concern, but Kirkland discloses nothing, ask before buying if PFAS exposure matters to you.
⚠Waterproof or stain-proof treatment
Kirkland Signature
Non-stick Parchment Paper Rolls, 15 In X 164 Ft,
silicone-coated paper
Lower-concern option; silicone coating is not a known PFAS source, but Kirkland makes no public PFAS disclosure.
⚠Waterproof or stain-proof treatment
Kirkland Signature
587346 Parchment-1pk Non Stick Parchment, 1 Pack, Clear
silicone-treated paper
Lower-concern parchment; silicone coating avoids traditional PFAS-prone nonstick chemistries, but brand discloses nothing.
⚠Waterproof or stain-proof treatment
Kirkland Signature
Costco Oven Paper 50m x 30cm
silicone-coated paper with grease-resistant treatment
Skip until Kirkland discloses coating formulation; grease-resistant oven paper often uses PFAS.
⚠Waterproof or stain-proof treatment
Kirkland Signature
Culinary Parchment Paper Non Stick 205+205 Sq Ft 2
paper with non-stick coating (type unspecified)
Skip or contact Kirkland for coating disclosure before buying.
⚠Nonstick, coating undisclosed
Every grade uses the same public rubric. How grades work →