Compostable Food Storage Container 5ct vs Polypropylene Flat Bags: 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
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
ClearBags
Polypropylene Flat Bags
PFAS grade
Good 70/100
Overall grade
Good 56/100
Verdict
Buy
Hazard flags
⚑ 2
Material
polypropylene (PP), no documented coating
Confidence
72%
PossibleMicroplastic release when heated
ReportedOligomeric leaching at high temperature or with fatty/acidic foods
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 ClearBags.
- We flag Microplastic release when heated and Oligomeric leaching at high temperature or with fatty/acidic foods on the ClearBags and not on the Matter.
- The Matter is Plant-based fiber pulp (compostable) where the ClearBags is polypropylene (PP), no documented coating, 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