Stik Cast Iron Seasoning vs Clarks Cast Iron Seasoning Oil: which is safer?
Stik Cast Iron Seasoning is the clear pick. Clarks Cast Iron Seasoning Oil carries a failing PFAS grade, and we never recommend buying a failing product.
Our pick
Crisbee
Stik Cast Iron Seasoning
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleOil rancidity and off-gassing
PossibleAllergen risk from plant oils
Clark's
Clarks Cast Iron Seasoning Oil
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleOxidative degradation and rancidity
PossibleSmoke point exceedance and thermal degradation
PossibleAllergenic or inflammatory seed oils
Where these two actually differ
- We flag Oil rancidity and off-gassing and Allergen risk from plant oils on the Crisbee and not on the Clark's.
- We flag Oxidative degradation and rancidity, Smoke point exceedance and thermal degradation and Allergenic or inflammatory seed oils on the Clark's and not on the Crisbee.
- The Crisbee is Organic waxes and oils blend where the Clark's is Vegetable oil seasoning, no coating applied, which is most of the difference in these two grades.
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 cast iron cookware seasoning & oil, see the full ranking