Member's Mark Corn Oil vs Stik Cast Iron Seasoning: which is safer?
Stik Cast Iron Seasoning is the clear pick. Member's Mark Corn Oil carries a failing PFAS grade, and we never recommend buying a failing product.
Corn Oil
Member's Mark Corn Oil
PFAS grade
Good 65/100
Overall grade
Good 57/100
Verdict
Buy
Hazard flags
⚑ 2
Material
Refined corn oil
Confidence
92%
PossibleOxidative degradation and rancidity
PossibleThermal degradation at high heat
Our pick
Crisbee
Stik Cast Iron Seasoning
PFAS grade
Excellent 85/100
Overall grade
Excellent 77/100
Verdict
Buy
Hazard flags
⚑ 2
Material
Organic waxes and oils blend
Confidence
78%
PossibleOil rancidity and off-gassing
PossibleAllergen risk from plant oils
Where these two actually differ
- We flag Oxidative degradation and rancidity and Thermal degradation at high heat on the Corn Oil and not on the Crisbee.
- We flag Oil rancidity and off-gassing and Allergen risk from plant oils on the Crisbee and not on the Corn Oil.
- The Corn Oil is Refined corn oil where the Crisbee is Organic waxes and oils blend, which is most of the difference in these two grades.
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 cast iron cookware seasoning & oil: see the full ranking