Canola Oil · Cast Iron Cookware Seasoning & Oil
Mazola Canola Oil
Lower concern; cooking oil product, not cookware.
Pure canola oil is an uncoated liquid with no surface treatments and doesn't typically contain PFAS unless contaminated during production, which is undocumented for this product. Liquid oils carry lower risk.
The better-graded swap
Lodge
Cast Iron Seasoning Spray
85/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Pure canola oil, uncoated liquid
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Mazola Canola Oil is made of, ingredients and materials
Mazola canola oil is a refined vegetable oil extracted from canola seeds, processed to remove impurities and then often bleached and deodorized during refining. Unlike cookware with coatings or enamels, liquid oils have no ceramic, enamel, or metal-based glazes that could leach heavy metals. The refinement process removes most contaminants, making it chemically stable at typical cooking temperatures (canola oil smoke point around 400°F / 204°C).
What’s concerning
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
Oxidation and rancidity (storage-related degradation)
Liquid oils degrade over time when exposed to heat, light, or air; rancid oil may produce off-flavors and potentially harmful oxidation byproducts, but this is a use/storage issue, not a manufacturing defect specific to Mazola.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Pesticide residue
Refined canola oil undergoes processing that removes most pesticide residues; no documented contamination events for Mazola canola oil are on record, and regulatory testing typically shows residues below actionable limits.
Source, EPA ↗Solvent residues from extraction/refining
Commercial refining may use solvents (typically hexane) to extract and purify oil; refineries are regulated to remove these to lower concern levels, and no specific recalls or findings of solvent contamination in Mazola products are documented.
Trans fats from partial hydrogenation
Mazola canola oil is not hydrogenated and contains negligible trans fats; the product complies with FDA labeling rules that require trans fat disclosure if present above 0.5g per serving.
Allergen contamination (cross-contact)
Canola oil itself is not a major allergen; cross-contact risk depends on manufacturing facility practices, which Mazola does not publicly detail, but no widespread allergen recall incidents for this product line are on record.
How is this PFAS grade calculated?
The brand's record and disclosure
Mazola (owned by ACH Food Companies) does not publicly disclose PFAS testing data or make specific third-party certifications for PFAS avoidance on this product. The brand has no major recalls or documented contamination controversies on record for canola oil specifically. Standard regulatory oversight applies through FDA food facility inspections; no independent certification (e.g., NSF, organic) is listed on typical product labeling.
How it compares in its category
Refined canola oil is a standard commodity cooking fat with safety profiles comparable to other refined vegetable oils (soybean, sunflower, safflower). Unlike unrefined or cold-pressed oils, Mazola's refining removes more naturally occurring compounds but also potential contaminants. It sits in the middle of the market in terms of processing transparency and lacks premium certifications (organic, non-GMO verified, or heavy-metal tested) that some alternatives advertise.
If you buy it
Store in a cool, dark place to slow oxidation and extend shelf life (typically 1-2 years after opening). Avoid reheating oil repeatedly or using it past visible signs of degradation (off odor, dark color, or cloudiness). For high-heat cooking (frying, searing), canola oil is suitable up to its smoke point; do not store opened bottles near heat sources. No special maintenance is needed; simply replace when rancidity develops or after the printed expiration date.
What is not known about PFAS in this product?
- Basis
- Model estimate, 95% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Canola Oil has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Mazola Canola Oil?
- 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.
More cast iron cookware seasoning & oil grades
How we score, every product runs through the same public 0-100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.