Durable Packaging · Disposable Food Service Containers
Stock Your Home 6-inch Clamshell Take Out Food Containers
Skip. Disposable food containers often use PFAS coatings; no transparency.
Durable Packaging provides no PFAS disclosure for this polystyrene clamshell. Disposable food containers frequently contain grease-resistant PFAS coatings. Brand silence on chemical composition raises concern.
The safe swap
Compostables
Eco-Products Compostable Clear Clamshell Hinged Food
100/100 safety
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
polystyrene clamshell, likely grease-resistant coated
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
Stock Your Home clamshells are polystyrene (PS, plastic #6), a brittle petroleum-based plastic chosen for low cost and thermal insulation. The product almost certainly carries a grease-resistant coating to prevent food oils from breaking down the container during transport and storage. Polystyrene itself can leach styrene monomer into fatty or hot foods, and the coating's composition is not disclosed by Durable Packaging, raising uncertainty about whether that barrier includes PFAS or other persistent chemicals.
The brand's record and disclosure
Durable Packaging maintains no public transparency about coating chemistry, material certifications, or food-safety testing specific to this product line. The company has not published statements on PFAS avoidance or disclosed whether grease-resistant treatments rely on fluorinated compounds. No recalls or regulatory actions are documented for this SKU, but the absence of disclosure is itself a red flag in a category where PFAS-coated foodware has become standard industry practice.
How it compares in its category
Polystyrene clamshells are among the cheapest single-use food containers and dominate takeout markets; however, they carry higher styrene-leaching risk than cardboard, aluminum, or uncoated fiber alternatives. Competitors offering certified PFAS-free or coated-free options (e.g., some molded-pulp or bagasse clamshells) exist at modest cost premiums. Durable Packaging's silence on coating chemistry places this product in the lower tier of transparency for food-contact plastics.
If you buy it
Do not use for hot foods or fatty foods stored longer than a few hours; polystyrene degrades with heat and oil exposure, accelerating styrene migration. Never microwave or place in direct sunlight. Discard if the container becomes cloudy, discolored, or soft, as these signs indicate plastic breakdown. For occasional cold-food use only; for regular meal prep or storage, switch to uncoated fiber, glass, or plastic with certified PFAS-free status.
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.”
Styrene monomer leaching
Polystyrene naturally leaches styrene into food, especially fatty foods and those above room temperature. Contact time, fat content, and temperature all increase migration; disposable use limits cumulative exposure but acute effects from heavy use are possible.
Grease-resistant coating composition (unspecified)
Durable Packaging does not disclose the chemistry of the grease barrier. Industry standard for such coatings often involves fluorinated surfactants or PFAS-like substances; lack of transparency prevents assessment of whether this product introduces PFAS or other persistent additives.
Microplastics from container degradation
Polystyrene is brittle and prone to cracking, crushing, and flaking during reuse or washing. Fragments may contaminate food if containers are washed and reused; single-use disposal mitigates this risk but increases environmental burden.
Thermal degradation and fume release
If heated (oven, microwave, or hot food), polystyrene softens and can decompose, releasing styrene vapor and other volatile organic compounds. The grease coating's thermal stability is unknown and untested in public records.
None known: heavy metals in resin
Polystyrene resin itself does not typically contain lead or cadmium. No recalls or contamination reports for this brand are on record, suggesting manufacturing quality is standard for the category.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 42% 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.
Safer alternatives in Disposable Food Service Containers
Compostables
Eco-Products Compostable Clear Clamshell Hinged Food
Compostable resin (PLA/PBAT blend, plant-based)
Lower concern. Compostable clamshell with PFAS-free claim and certifications.
✓Verified PFAS-free by a third party
Hefty
Food Storage Containers with Lids
Polypropylene (PP) plastic container with lids
Lower concern. Polypropylene containers unlikely to contain intentional PFAS.
⚠Risky category by default
Hefty
Clear Plastic Hinged Take-Out Containers
polypropylene (PP) plastic
Lower concern; no known PFAS risk from PP hinged containers.
⚠Risky category by default
More disposable food service containers 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.