Tellus Compostable Clamshell vs Compostable Fiber Compost-A-Pak Containers: which is safer?

World Centric Compostable Fiber Compost-A-Pak Containers is the clear pick. Tellus Compostable Clamshell carries a failing PFAS grade, and we never recommend buying a failing product.

Tellus Compostable Clamshell

Greensafe

Tellus Compostable Clamshell

PFAS grade

Poor 25/100

Overall grade

Bad 0/100

Verdict

Skip

Hazard flags

⚑ 4

Material

Polylactic acid (PLA) or plant-based plastic blend with unknown coating/barrier

Confidence

35%

ReportedPFAS in barrier coating or sealant

PossibleMicroplastics and degradation byproducts

PossibleMigration of PLA additives and degradation products

Our pick

World Centric Compostable Fiber Compost-A-Pak Containers

World Centric

Compostable Fiber Compost-A-Pak Containers

PFAS grade

Excellent 100/100

Overall grade

Good 74/100

Verdict

Buy

Hazard flags

⚑ 5

Material

Fiber-based (wood pulp/molded fiber), compostable coating

Confidence

78%

PossibleProprietary coating chemical migration

PossibleMoisture and microbial growth in fiber matrix

ReportedCoating degradation under heat or fatty foods

Where these two actually differ

  • We flag PFAS in barrier coating or sealant, Microplastics and degradation byproducts, Migration of PLA additives and degradation products and Undisclosed coatings or processing residues on the Greensafe and not on the World Centric.
  • We flag Proprietary coating chemical migration, Moisture and microbial growth in fiber matrix, Coating degradation under heat or fatty foods and Recycling contamination if misdisposed on the World Centric and not on the Greensafe.
  • The Greensafe is Polylactic acid (PLA) or plant-based plastic blend with unknown coating/barrier where the World Centric is Fiber-based (wood pulp/molded fiber), compostable coating, which is most of the difference in these two grades.
  • The gap is 75 points, wide enough that this is not a close call, and the World Centric is the one to buy.
  • We are less certain about the Greensafe grade, at 35% confidence against 78%, because it discloses less.

Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →

More food packaging: see the full ranking