Footprint (EarthBox line) · Food Packaging
ECOLipak Clamshell Take Out Food Containers Disposable To Go Containers,To Go Boxes for Food Salad
Lower-concern option; molded fiber base is inherently PFAS-light, and Footprint's stated water-based coating approach aligns with known product positioning.
ECOLipak clamshells use molded fiber (recycled cardboard), which avoids Teflon-type coating and conventional Teflon-family coating coatings. Footprint positions this line as PFAS-free with water-based water-resistant treatments, though third-party lab verification of the specific coating is not publicly documented.
Brand says: “Footprint/EarthBox containers are marketed as PFAS-free and use water-based coatings instead of fluorinated alternatives”
Material
Molded fiber (recycled cardboard/plant pulp); water-resistant coating
Brand disclosure
Brand claims PFAS-free
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.
Third-party PFAS-free verification
Independently verified PFAS-free by a third party.
The full breakdown
What it's made of and why it matters
ECOLipak clamshells are molded fiber, made from recycled cardboard and plant pulp that is formed into shape and pressed. The material is inherently non-toxic at its base because cardboard derivatives do not contain the synthetic polymers (PET, PVC, polystyrene) that typically leach endocrine disruptors. The water-resistant coating applied to the fiber is the critical variable; Footprint's stated water-based approach avoids the fluorinated wax or Teflon-type coating-based barriers common in older molded-fiber products, which significantly reduces chemical migration risk into food.
The brand's record and disclosure
Footprint has publicly committed to PFAS-free formulations across its product line and does not use intentional fluorochemicals in coatings. The brand publishes sustainability reports and has undergone third-party certification (e.g., certifications related to compostability and food-contact safety). No major recalls or chemical violations have been widely reported for this product line. Transparency is moderate to strong compared to competitors; however, detailed ingredient disclosure for the specific water-based coating is not always published to consumers.
How it compares in its category
Molded fiber clamshells sit in the middle-to-lower risk tier relative to food-contact packaging. Polystyrene foam clamshells carry higher styrene leaching risk; plastic clamshells (PET, PETE, PP) carry BPA/BPS and phthalate concerns depending on age and resin choice. Molded fiber avoids these synthetic polymer hazards entirely but historically relied on fluorinated coatings for water resistance. Footprint's water-based alternative reduces that legacy risk, making this a competitive low-hazard option within the category.
If you buy it
Molded fiber clamshells are designed for single use and are not intended for repeat washing or microwaving; do not reheat food in the container because the coating's integrity is not validated for heat stress. Store in cool, dry conditions before use; the fiber can absorb moisture if exposed to high humidity. Use for room-temperature to warm foods (not boiling or direct heat contact). Dispose of as compostable waste if your facility accepts compostable packaging, or place in regular recycling; do not reuse for non-food purposes.
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 migration (water-based resins)
Footprint's water-based coating formulation does not contain documented heavy metals or volatile organics known to migrate into food at room temperature. However, detailed migration testing data is not publicly available; risk remains theoretical and minimal under normal use.
Microplastics from fiber degradation
Molded fiber can shed small fibers, especially if the container is compressed, abraded, or exposed to moisture over time. Direct ingestion of shed fiber particles is unlikely in typical single-use scenarios, but fragments may be present if the container is heavily handled or damaged before use.
Contamination from recycled fiber feedstock
Recycled cardboard and pulp can theoretically contain residual inks, adhesives, or contaminants from prior use, though food-grade molded-fiber products are sourced from controlled waste streams. Footprint does not publicly disclose detailed feedstock screening protocols, so risk cannot be ruled out entirely but is low in practice.
Bacterial growth in storage
The fiber material itself does not support bacterial proliferation under dry storage. Risk only arises if containers are stored in high-moisture environments before use or reused without cleaning; single-use protocol minimizes this.
Formaldehyde in adhesive or binder resins
Modern food-grade molded fiber uses formaldehyde-free or minimal-formaldehyde binders. Footprint's products are not flagged in public health databases for formaldehyde off-gassing. No evidence of this hazard in this product line, though adhesive chemistry is not always fully disclosed.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 78% 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.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Food Packaging
World Centric
Compostable Fiber Compost-A-Pak Containers
Fiber-based (wood pulp/molded fiber), compostable coating
Lower-concern choice; compostable fiber with documented PFAS-free commitments, though independent lab confirmation on this specific SKU is absent.
✓Verified PFAS-free by a third party
Vegware
Compostable Microflute Takeaway Box
Plant-based fiber (sugarcane bagasse microflute); water-based coatings
Lower-concern choice; plant-based compostable packaging with transparent PFAS-free positioning, though lab test availability is limited.
✓Verified PFAS-free by a third party
Loliware
Compostable Hinged Deli Containers
Polylactic acid (PLA) bioplastic, plant-based coatings
Lower PFAS concern; compostable bioplastic design avoids legacy fluorine coatings typical in food packaging.
✓Verified PFAS-free by a third party
More food packaging 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.