CKF Inc · Disposable Food Containers
SQP Kraft Paper Take-Out Container, #4, 4 3/8" x 3 1/2" x 2 1/2" - (160/Case) 100460
Grease-resistant food packaging; PFAS status unknown from brand.
Kraft paper take-out containers typically use polyethylene or fluorinated water/grease barriers. CKF Inc provides no PFAS disclosure. No independent testing data available to confirm or rule out PFAS.
The safe swap
Lakeland
Sustainables 3 Compartment Hinged Lid To Go Food Container
70/100 safety
Same rubric that flunked this product. The swap earned its C.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Kraft paper, likely PE-coated or grease-resistant treatment
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Waterproof / stain-resistant treatment
water-repellent coating treatments have historically used PFAS.
Category baseline
food packaging is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
This is kraft paper (mechanically strong, unbleached wood pulp) coated or treated for grease resistance, most likely with polyethylene (PE) or a proprietary wax-based or PFAS-containing barrier. The coating is essential to prevent oil and moisture penetration, but the specific chemistry is not disclosed by CKF Inc on this SKU. Kraft paper itself is low-risk; the hazard profile depends entirely on what that grease-resistant treatment contains.
The brand's record and disclosure
CKF Inc is a major North American food-service packaging manufacturer with no public commitment to PFAS-free formulations or transparency on fluorinated coatings in their product lines. The company does not disclose treatment chemistry on most SKUs, including this one. No major recalls or safety incidents are on record for this specific container model, but the silence on coating composition is a transparency gap that prevents confident assessment of PFAS exposure risk.
How it compares in its category
Kraft take-out containers dominate the food-service market and are generally safer than bleached paper or plastic-rigid hybrid boxes for moderate-temperature use. However, many kraft containers in this price tier use legacy PFAS-based grease barriers (perfluorooctanoic acid derivatives or similar) to meet food-contact durability standards. Competitor brands like Footprint and some regional suppliers now market PFAS-free versions, making the lack of CKF transparency a relative weakness in an evolving category.
If you buy it
Use for room-temperature or cool foods only; do not microwave or subject to high heat, as coating migration risk increases with temperature. Do not fill with acidic, alcohol-based, or long-chain fatty foods for extended periods; grease coatings can degrade. Replace containers if the interior shows visible wear, peeling, or discoloration. Store in a cool, dry location to prevent moisture-driven coating breakdown. For frequent or long-term use, prioritize suppliers with published PFAS-free claims.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Grease-resistant coating composition (non-PFAS)
Kraft containers use either polyethylene, wax, silicone, or legacy fluorinated polymer coatings. CKF does not disclose which for this model. PE is low-risk; older PFAS-based treatments carry migration risk (covered separately under PFAS grade). No reformulation commitment is publicly stated by CKF.
Ink or printing residues (if printed SKU applies)
This is a plain kraft item (#4 standard) with no printing noted. If custom-printed versions exist, heavy metal content in food-contact inks would be a concern, but that is not applicable to the base product as listed.
Chlorine bleaching residues (kraft vs. bleached variants)
Kraft paper is typically unbleached or lightly oxygen-bleached. Chlorine-based bleaching is not standard for kraft food-service containers, so AOX (absorbable organic halides) and dioxin residues are not a known concern for this category.
Moisture-driven coating degradation and particulate release
Repeated wetting or high-humidity storage can cause the grease coating to peel or shed microscopic particles into food. The kraft substrate itself remains food-safe, but coating loss reduces barrier function and increases contact time between food and untreated fiber.
Formaldehyde or formaldehyde-releasing adhesives in laminate or seam bonding
Kraft containers typically use non-formaldehyde starch or PE-based adhesives. No industry standard or regulatory requirement uses formaldehyde binders in food-service paper packaging, so this hazard is not established for this product class.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 45% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
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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.