6 Inch Square Compostable Clamshell Containers 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.
6 Inch Square Compostable Clamshell Containers
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleCompostable coating breakdown and microparticle release
PossibleBleaching residues and formaldehyde resins in pulp
PossibleMoisture-induced coating failure and food contamination
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
Where these two actually differ
- We flag Compostable coating breakdown and microparticle release, Bleaching residues and formaldehyde resins in pulp and Moisture-induced coating failure and food contamination on the 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 .
- The is The brand, compostable coating 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