Earth 24oz PLA Hinged Deli Container vs Compostable Food Storage Container 5ct: which is safer?

Matter Compostable Food Storage Container 5ct is our pick, better on PFAS and on the overall hazard picture.

Karat Earth 24oz PLA Hinged Deli Container

Karat

Earth 24oz PLA Hinged Deli Container

PFAS grade

Good 70/100

Overall grade

Good 52/100

Verdict

Buy

Hazard flags

⚑ 3

Material

PLA (polylactic acid) bioplastic

Confidence

78%

PossiblePLA monomer and oligomer migration

ReportedMicroplastics generation when heated

PossibleDegradation and brittleness over storage

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 PLA monomer and oligomer migration, Microplastics generation when heated and Degradation and brittleness over storage on the Karat 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 Karat.
  • The Karat is PLA (polylactic acid) bioplastic where the Matter is Plant-based fiber pulp (compostable), which is most of the difference in these two grades.
  • The gap is 30 points, wide enough that this is not a close call, and the Matter is the one to buy.

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 →

More food packaging, see the full ranking