Is Compostables PFAS-free?
Across 8 graded products, Compostables averages D (69/100). On disclosure, the brand says nothing publicly about PFAS. 7 of its products grade C or better. Grades are model-based estimates, not lab results.
Worth buying from Compostables C or better, safest first
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
Compostables
50 Pack Compostable Clamshell To Go Food Containers with lids, 10 inchx10 inchx3 inch Disposable Take Out Food Container
plant-based fiber/pulp clamshell
Lower PFAS risk for plant-fiber food container.
⚠Risky category by default
Compostables
Tellus Compostable Clamshell Container Pack of 100
compostable biopolymer, likely PLA or similar
Lower concern. Compostable materials typically avoid PFAS.
⚠Risky category by default
Compostables
Eco-Products Renewable Compostable Clear Clamshells 6 x 6 x 3
Polylactic acid (PLA) from renewable resources
Lower concern; compostable PLA clamshells unlikely to contain PFAS.
⚠Risky category by default
Compostables
Avant Grub Biodegradable 6x6 Take Out Food Containers with Clamshell Hinged Lid Mi
Molded plant-based fiber or bagasse, clamshell hinged container
Lower concern, but brand transparency on PFAS absence would help.
⚠Risky category by default
Compostables
Freshware Compostable Clamshell Food Containers
Compostable plant-based fiber/starch blend
Lower concern; inherently PFAS-resistant material, no known risk.
⚠Risky category by default
Compostables
ECO- Lipak Wholesale Sugarcane Clamshell To-Go Boxes
Sugarcane bagasse (compostable fiber)
Lower concern. Compostable sugarcane packaging rarely uses PFAS.
⚠Risky category by default
Graded and flagged D and F, we’d swap these
Compostables
Compostable Clamshell Take Out Food Containers with Lids
Plant-based fiber or PLA clamshell with unspecified water/grease barrier coating
Skip until coating ingredients disclosed; compostable claim unclear.
⚠Waterproof or stain-proof treatment
Every grade uses the same public rubric. How grades work →