Compostable Food Storage Container 5ct vs Compostable Sandwich Bags 50ct: 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
Matter
Compostable Sandwich Bags 50ct
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleMicroplastic shedding and degradation products
PossibleAdditives and colorants (not further specified)
ReportedComposting-site dependent safety (end-of-life)
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 Matter.
- We flag Microplastic shedding and degradation products, Additives and colorants (not further specified) and Composting-site dependent safety (end-of-life) on the Matter and not on the Matter.
- The Matter is Plant-based fiber pulp (compostable) where the Matter is plant-based compostable polymer (likely PLA or PBAT), 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