Does Peanut Oil cast iron cookware seasoning & oil have PFAS?
Peanut Oil cast iron cookware seasoning & oil averages 65 out of 100 on PFAS Authority's PFAS and toxin screen across the 4 Peanut Oil cast iron cookware seasoning & oil products graded as of October 2026, level with the 65 out of 100 median for the 12 other cast iron cookware seasoning & oil brands graded alongside it.
Peanut Oil cast iron cookware seasoning & oil averages Good on our four-band scale. None of them clear our buy threshold. That is above 42% of the cast iron cookware seasoning & oil brands we grade.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
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- Bacterial growth in spent cartridges
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- Bacterial and microbial growth in housing and filters
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2 hazards checked on this product, all on its full breakdown.
Which Peanut Oil cast iron cookware seasoning & oil contains PFAS? Poor and Bad, we’d swap these
- 100% peanut oil, liquid cooking oil
- We found no PFAS statement from the brand
- Rancidity and oxidative degradation. Peanut oil is prone to oxidation over time, especially in a large 35 lb…
3 hazards checked on this product, all on its full breakdown.
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- Refined peanut oil
- We found no PFAS statement from the brand
- Oxidative degradation (rancidity). Any refined peanut oil can oxidize over time if stored in warm, bright, or…
2 hazards checked on this product, all on its full breakdown.
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- Refined peanut oil, liquid cooking oil
- We found no PFAS statement from the brand
- Thermal breakdown (oxidation) at high heat. All cooking oils degrade when heated above smoke point (450F for…
2 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
- Refined peanut oil, liquid
- We found no PFAS statement from the brand
- Oxidation and rancidity. Refined peanut oil can oxidize over time if exposed to heat, light, or air…
3 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonBetter cast iron cookware seasoning & oil from other brands
Graded higher than the Peanut Oil average of 65.
- Organic waxes and oils blend
- We found no PFAS statement from the brand
- Oil rancidity and off-gassing
2 hazards checked on this product, all on its full breakdown.
- mineral oil and soy-based oil blend
- Aerosol inhalation (mineral oil mist)
3 hazards checked on this product, all on its full breakdown.
Cast Iron Ultimate Bundle
- cast iron, bare or seasoned with the brand
- We found no PFAS statement from the brand
- Iron leaching into food
2 hazards checked on this product, all on its full breakdown.
The same question, asked of the other cast iron cookware seasoning & oil brands
Best average grade first. Peanut Oil averages 65.
See every Peanut Oil product we grade on the Peanut Oil brand page, or the full cast iron cookware seasoning & oil ranking.