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

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

Freshware Compostable Clamshell Food Containers

Panera Bread

Freshware Compostable Clamshell Food Containers

PFAS grade

Poor 25/100

Overall grade

Bad 0/100

Verdict

Skip

Hazard flags

⚑ 5

Material

Compostable plant-based clamshell, grease-resistant coating unspecified

Confidence

35%

LikelyPFAS in grease-resistant coatings

PossibleMicroplastic shedding from polymer degradation

ReportedMigration of coating additives into food

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 grease-resistant coatings, Microplastic shedding from polymer degradation, Migration of coating additives into food and Lack of thermal stability for hot foods on the Panera Bread 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 Panera Bread.
  • The Panera Bread is Compostable plant-based clamshell, grease-resistant coating unspecified 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 Panera Bread 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