Butter Flavor No-Stick Cooking Spray vs Waterproofing Wax for Leather: which is safer?
Crisco Butter Flavor No-Stick Cooking Spray is the clear pick. Nikwax Waterproofing Wax for Leather carries a failing PFAS grade, and we never recommend buying a failing product.
Our pick
Crisco
Butter Flavor No-Stick Cooking Spray
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleHydrocarbon propellant inhalation (acute respiratory irritation)
ReportedPropellant ignition hazard
PossibleOil oxidation and rancidity (minor ingestion risk)
Nikwax
Waterproofing Wax for Leather
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleRespiratory irritation or fume inhalation during application
ReportedPFAS in water repellency treatment
Where these two actually differ
- We flag Hydrocarbon propellant inhalation (acute respiratory irritation), Propellant ignition hazard, Oil oxidation and rancidity (minor ingestion risk) and Lecithin allergen potential on the Crisco and not on the Nikwax.
- We flag Respiratory irritation or fume inhalation during application and PFAS in water repellency treatment on the Nikwax and not on the Crisco.
- The Crisco is Hydrocarbon propellant and oil-based spray where the Nikwax is wax-based waterproofing, 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 →
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