Compostable Fiber Box 30 oz. vs Compostable Food Storage Container 5ct: which is safer?

Matter Compostable Food Storage Container 5ct is the clear pick. World Centric Compostable Fiber Box 30 oz. carries a failing PFAS grade, and we never recommend buying a failing product.

World Centric Compostable Fiber Box 30 oz.

World Centric

Compostable Fiber Box 30 oz.

PFAS grade

Poor 25/100

Overall grade

Bad 13/100

Verdict

Skip

Hazard flags

⚑ 3

Material

Fiber pulp with undisclosed grease/water-resistant coating

Confidence

45%

PossibleGrease/water-resistant coating composition (non-PFAS focus)

PossibleMicroplastic or coating particle shedding during use

PossibleMigration of coating additives in acidic or oily foods

Our pick

Matter Compostable Food Storage Container 5ct

Matter

Compostable Food Storage Container 5ct

PFAS grade

Excellent 100/100

Overall grade

Excellent 92/100

Verdict

Buy

Hazard flags

⚑ 2

Material

Plant-based fiber pulp (compostable)

Confidence

82%

PossibleMicrobe/mold growth if stored damp

PossibleCellulose degradation under repeated hot/wet stress

Where these two actually differ

  • We flag Grease/water-resistant coating composition (non-PFAS focus), Microplastic or coating particle shedding during use and Migration of coating additives in acidic or oily foods on the World Centric and not on the Matter.
  • We flag Microbe/mold growth if stored damp and Cellulose degradation under repeated hot/wet stress on the Matter and not on the World Centric.
  • The World Centric is Fiber pulp with undisclosed grease/water-resistant coating where the Matter is Plant-based fiber pulp (compostable), 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 Matter is the one to buy.
  • We are less certain about the World Centric grade, at 45% confidence against 82%, because it discloses less.

Both products run through the same public rubric, which covers 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 →

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