Kirkland Signature · Fast Food Wrappers
Kirkland Signature 12" Plastic Food Wrap, 3000 ft
Lower PFAS concern but no transparency, as standard polyethylene wrap likely safe unless slip coat is undisclosed.
Kirkland's plastic wrap is standard polyethylene with an undisclosed slip agent to prevent sticking during unroll. Polyethylene itself is PFAS-free, but commercial cling wraps sometimes use Teflon-family coating coatings or PFAS-based slip additives that Kirkland does not detail.
The safe swap
Reynolds Wrap
Reynolds Heavy Duty Aluminum Foil Roll
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
Polyethylene (PE) plastic film with slip/release agent
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Waterproof / stain-resistant treatment
Water-repellent treatments have historically contained PFAS chemicals.
Category baseline
PFAS exposure happens more often with clothing products.
No PFAS disclosure
The company has not publicly discussed PFAS in this product.
Microplastic shedding during use
PE film can degrade and fragment if repeatedly stretched, heated, or exposed to UV light, though food wrap sees minimal mechanical stress during typical application. Risk is low under normal storage and wrapping conditions.
Slip coat leachables (fluorinated or otherwise)
Kirkland does not disclose slip agent chemistry. If the coating contains fluorinated compounds, PFAS transfer risk exists; if silicone or fatty-acid based, risk is minimal. Undisclosed formulation is the limitation, not an established hazard.
Thermal degradation at elevated temperature
PE film begins to soften above 80-100°C (176-212°F) and should not contact hot foods or be used in microwave ovens. Direct contact with hot surfaces can cause melting and potential ingestion of film fragments, though this is user error rather than product defect.
What’s reassuring
BPA & bisphenols
Polyethylene film does not contain BPA or BPS by manufacturing standard. No recalls or warnings exist for Kirkland wrap on this hazard.
Source: FDA ↗Phthalate plasticizers
PE is naturally flexible and does not require phthalate plasticizers. This product class does not use them.
The full breakdown
What it's made of and why it matters
Kirkland 12" wrap is polyethylene (PE) film, the most common food wrap plastic globally. PE is chemically inert at room temperature and does not contain BPA or phthalates by design. The slip/release agent (typically silicone or fatty acid derivative) enables the wrap to unroll smoothly; if fluorinated, this could introduce PFAS, but Kirkland has not disclosed the slip coat chemistry. PE does not leach at temperatures typical of food storage (fridge/pantry), though direct contact with hot foods or prolonged microwave use is not recommended for any PE film.
The brand's record and disclosure
Kirkland Signature (Costco's house brand) does not publish material safety data sheets or PFAS disclosure for this product. Costco has faced no major recalls tied to food wrap safety in recent years. The brand maintains lower public transparency than premium alternatives (e.g., If You Care, Stretch-Tite) but offers no known history of hazardous formulations in plastic wrap. Absence of disclosure is typical for commodity food wrap and does not indicate a safety failure.
How it compares in its category
Kirkland PE wrap is functionally equivalent to store-brand PE wraps from other retailers (Glad, Saran, Trader Joe's). It carries the same material hazard profile as mainstream alternatives: inert plastic with undisclosed slip coat. Premium brands that disclose non-fluorinated slip agents (If You Care) offer marginal additional transparency but similar practical performance. Price and roll length (3000 ft) place it as a bulk value option with no safety disadvantage over name brands.
If you buy it
Use only on room-temperature and cold foods; do not cover hot dishes or place wrap in direct microwave contact. Store in a cool, dry place away from heat and light to prevent film brittleness. Replace the roll if the film becomes tacky, discolored, or embrittled, which signals potential slip coat breakdown (uncommon but indicates end of shelf life). Standard food-contact warnings apply: wash hands before use and keep wrap away from open flame.
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.
Safer alternatives in Fast Food Wrappers
Reynolds Wrap
Reynolds Heavy Duty Aluminum Foil Roll
aluminum foil (bare)
Aluminum leaching into acidic or salty foods
Limited concern
Sharp edges and mechanical injury
Moderate concern
Lower concern since bare aluminum foil does not require PFAS treatments.
⚠Risky category by default
Reynolds Wrap
Reynolds Aluminum Foil Wrap Heavy Duty
Aluminum foil, uncoated
Aluminum leaching (acidic/salt contact)
Limited concern
Metal particle shedding
Limited concern
Thermal stability under high heat
Moderate concern
Lower concern since plain aluminum foil carries minimal PFAS risk, though the brand offers no explicit statement.
⚠Risky category by default
If You Care
Parchment Baking Paper
silicone-coated parchment paper
Silicone coating degradation over time
Limited concern
Lower concern since credible brand transparency and third-party backing substantially reduce PFAS risk.
⚠Waterproof or stain-proof treatment
More fast food wrappers 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.