Dart Compostable Molded Fiber Hinged Trays vs Compostable Food Storage Container 5ct: which is safer?

Matter Compostable Food Storage Container 5ct is the clear pick. Dart Compostable Molded Fiber Hinged Trays carries a failing PFAS grade, and we never recommend buying a failing product.

Dart Compostable Molded Fiber Hinged Trays

Dart Container

Dart Compostable Molded Fiber Hinged Trays

PFAS grade

Poor 25/100

Overall grade

Bad 13/100

Verdict

Skip

Hazard flags

⚑ 3

Material

Molded fiber (sugarcane bagasse/wood pulp) with waterproofing coating

Confidence

45%

PossibleUndisclosed waterproofing coating leachates (non-PFAS alternatives and fluorinated unknown

PossibleCoating degradation and microfiber/particulate shedding over repeated use or washing

PossibleCross-contamination or bacterial colonization of coating surface if reused

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 Undisclosed waterproofing coating leachates (non-PFAS alternatives and fluorinated unknown, Coating degradation and microfiber/particulate shedding over repeated use or washing and Cross-contamination or bacterial colonization of coating surface if reused on the Dart Container 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 Dart Container.
  • The Dart Container is Molded fiber (sugarcane bagasse/wood pulp) with waterproofing 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 Dart Container 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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