Canola Oil Review, Is Canola Oil Non-Toxic?
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.
Across 2 graded products, Canola Oil averages Excellent (80/100). On disclosure, the brand says nothing publicly about PFAS. 2 of its products grade Good or better. Grades are model-based estimates, not lab results.
Worth buying from Canola Oil Good or better, safest first
Canola Oil
Wesson Canola Oil
Refined canola oil, liquid
Oxidation and rancidity on storage
Refined canola oil oxidizes over time when exposed to heat, light, or air, producing…
Trans fats from processing
Some refined canola oils may contain trace trans fats (under 0.5 percent per serving)…
Lower concern; liquid oil product, not cookware.
⚠Risky category by default
Canola Oil
Mazola Canola Oil
Pure canola oil, uncoated liquid
Oxidation and rancidity (storage-related degradation)
Liquid oils degrade over time when exposed to heat, light, or air; rancid oil may produce…
Lower concern; cooking oil product, not cookware.
⚠Risky category by default
Every grade uses the same public rubric. How grades work →