Compostables · Disposable Food Service Containers
50 Pack Compostable Clamshell To Go Food Containers with lids, 10 inchx10 inchx3 inch Disposable Take Out Food Container
Lower PFAS risk for plant-fiber food container. No water/grease coating claims.
Compostable clamshells are typically molded plant pulp without fluorinated coatings. Brand provides no PFAS disclosure, but bare compostable fiber has inherently lower risk than treated waterproof packaging.
Shop Compostables on Amazon →Material
plant-based fiber/pulp clamshell
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
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 product is a molded plant-based fiber (pulp) clamshell, typically made from sugarcane bagasse, recycled paper, or similar cellulose sources. Unlike polystyrene foam or polypropylene containers, plant-fiber shells do not leach styrene or plastic polymers into food. The pulp is formed under heat and pressure, then often treated with a water-resistant coating to prevent grease penetration during use. Because the base material is cellulose rather than synthetic polymer, classical plastic migration risks (BPA, phthalates) are eliminated by design.
The brand's record and disclosure
Compostables brand does not publish detailed material sourcing or third-party testing certifications on publicly available channels. No recalls, safety warnings, or documented contamination incidents are on record for this brand or product line. The brand claims compostability but has not made transparent claims about coating composition or PFAS testing. Absence of disclosure does not indicate a safety failure, only a lack of proactive transparency common in the disposable foodware market.
How it compares in its category
Plant-fiber clamshells occupy a middle ground between single-use plastic (polystyrene, polypropylene) and glass or ceramic reusables. Compared to polystyrene foam containers, they eliminate styrene off-gassing and microplastic shedding. Compared to reusables, they avoid repeated washing and chemical degradation but generate waste. Within the disposable plant-fiber category, this product is typical; competitors (Footprint, Vegware, local suppliers) share similar material profiles and lack comprehensive PFAS or contaminant testing disclosure.
If you buy it
Plant-fiber clamshells are designed for room-temperature to warm foods (up to approximately 160-180 degrees Fahrenheit); do not use in microwave or oven at high heat, as the coating may degrade and pulp structure can soften. Store in a dry location; moisture can weaken the shell and promote mold growth if stacked damp. Discard after single use as intended; do not reuse for hot foods. Compost or recycle according to local facilities; verify your area accepts compostable foodware, as some facilities reject them.
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.”
Coating composition / food-contact substance safety
Plant-fiber clamshells typically use polymer or wax-based coatings for water and grease resistance. Compostables brand does not publicly disclose coating chemistry. If coating includes urea-formaldehyde or other adhesives, migration is theoretically possible at elevated temperatures, though no incidents are documented for this brand.
Microplastic or pulp particle shedding
Plant-fiber containers are less prone to microplastic shedding than plastic polymers. However, mechanical damage, grinding, or extended moisture exposure can cause small pulp fibers to shed into food. No reported cases for Compostables brand; risk is low under normal single-use conditions.
Mold and bacterial growth
Cellulose-based materials absorb moisture. If containers are stored damp or in humid conditions before use, mold or bacterial biofilm can develop on interior surfaces. This is a storage and handling issue rather than a manufacturing defect. Inspect containers before filling with food.
Heavy metals in bleach or processing residues
Plant-fiber pulping and bleaching can theoretically introduce trace chlorine or heavy metal residues if uncontrolled. No testing or incidents are on record for Compostables brand. Regulatory compliance with FDA food-contact substance rules is assumed but not independently verified by third parties.
PFAS in coating or processing aids
Plant-fiber clamshells marketed as 'compostable' and without explicit grease-barrier claims are less likely to contain aqueous film-forming foams (AFFF) or fluorinated polymers than polystyrene or coated paper containers. However, coating chemistry is not disclosed by Compostables, so PFAS presence cannot be ruled out. Lower likelihood compared to plastic alternatives.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% 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
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.