Duro Bag 25 lb Short Heavy Duty Kraft Grocery Bag vs Grease-Proof 4 lb. HDPE Graphic Bakery Bag - 5"L x 3"D x 11"H: which is safer?
Duro Bag 25 lb Short Heavy Duty Kraft Grocery Bag is the clear pick. Grease-Proof 4 lb. HDPE Graphic Bakery Bag - 5"L x 3"D x 11"H carries a failing PFAS grade, and we never recommend buying a failing product.
Our pick
Duro Bag Manufacturing
Duro Bag 25 lb Short Heavy Duty Kraft Grocery Bag
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleMold or microbial growth on stored paper
Westrock
Grease-Proof 4 lb. HDPE Graphic Bakery Bag - 5"L x 3"D x 11"H
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
LikelyPFAS in grease-proof coating
PossibleCoating degradation and microplastic migration
PossibleThermal instability of coating under heating
Where these two actually differ
- We flag Mold or microbial growth on stored paper on the Duro Bag Manufacturing and not on the Westrock.
- We flag PFAS in grease-proof coating, Coating degradation and microplastic migration, Thermal instability of coating under heating and Allergen or food-residue contamination from recycling stream on the Westrock and not on the Duro Bag Manufacturing.
- The Duro Bag Manufacturing is Unbleached kraft paper where the Westrock is HDPE plastic with grease-proof coating (composition unspecified), which is most of the difference in these two grades.
- The gap is 45 points, wide enough that this is not a close call, and the Duro Bag Manufacturing is the one to buy.
- We are less certain about the Westrock grade, at 42% confidence against 72%, because it discloses less.
Both products run through the same public rubric: 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 bakery bags: see the full ranking