Compostable Food Storage Container 5ct vs 100% Compostable Clamshell Take Out Food Containers: which is safer?

Matter Compostable Food Storage Container 5ct is the clear pick. 100% Compostable Clamshell Take Out Food Containers carries a failing PFAS grade, and we never recommend buying a failing product.

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

100% Compostable Clamshell Take Out Food Containers

100% Compostable Clamshell Take Out Food Containers

PFAS grade

Poor 25/100

Overall grade

Bad 0/100

Verdict

Skip

Hazard flags

⚑ 4

Material

Plant-based compostable resin (likely PLA or PBAT blend) with unknown moisture/grease barrier coating

Confidence

45%

LikelyPFAS in moisture/grease barrier coatings

PossibleMonomer and oligomer leaching from PLA/PBAT resin

ReportedMicroplastic degradation in non-composted environments

Where these two actually differ

  • We flag Microbe/mold growth if stored damp and Cellulose degradation under repeated hot/wet stress on the Matter and not on the .
  • We flag PFAS in moisture/grease barrier coatings, Monomer and oligomer leaching from PLA/PBAT resin, Microplastic degradation in non-composted environments and Inadequate composability claims without certification on the and not on the Matter.
  • The Matter is Plant-based fiber pulp (compostable) where the is Plant-based compostable resin (likely PLA or PBAT blend) with unknown moisture/grease barrier 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 Matter is the one to buy.
  • We are less certain about the 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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