Compostable Food Storage Container 5ct vs Earth PLA Hinged Containers: which is safer?
Matter Compostable Food Storage Container 5ct is our pick, better on PFAS and on the overall hazard picture.
Our pick
Matter
Compostable Food Storage Container 5ct
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleMicrobe/mold growth if stored damp
PossibleCellulose degradation under repeated hot/wet stress
Karat
Earth PLA Hinged Containers
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleThermal leaching of PLA monomers and additives
PossibleMicroplastic shedding from wear and seam degradation
PossibleUndisclosed additives or fillers in PLA formulation
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 Karat.
- We flag Thermal leaching of PLA monomers and additives, Microplastic shedding from wear and seam degradation and Undisclosed additives or fillers in PLA formulation on the Karat and not on the Matter.
- The Matter is Plant-based fiber pulp (compostable) where the Karat is PLA (polylactic acid) bioplastic, plant-based, 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