Grapeseed Oil · Cast Iron Cookware Seasoning & Oil
Grapeseed Oil La Tourangelle
Lower concern. Liquid oil product with no coating or treatment on record.
Grapeseed oil is a liquid food product with no surface treatments or water-repellent finishes on record. The brand has no PFAS statement on record for this product.
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
Grapeseed oil, liquid food product
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Grapeseed Oil La Tourangelle is made of, ingredients and materials
Grapeseed oil is a liquid fat extracted from grape seeds, containing primarily linoleic acid (omega-6 polyunsaturated fat) and smaller amounts of oleic acid. La Tourangelle sources from wine-producing regions (France, Italy, Spain) where it is pressed from seeds discarded during winemaking. As a pure oil with no additives, binders, or synthetic coatings, it carries no risk of leaching compounds like lead, cadmium, or Teflon-type coating that plague cookware. The product is not cookware itself but rather a cooking ingredient.
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 (stability degradation)
Grapeseed oil's high linoleic acid content makes it vulnerable to oxidative breakdown over time, especially if stored warm or in clear containers. Rancid oil poses mild digestive upset and may contain harmful peroxide compounds, though toxicity is low at typical consumption levels.
Allergenicity (cross-contamination or processing aids)
Grape seed processing may expose oil to tree nuts or sesame depending on facility shared-equipment protocols. La Tourangelle does not detail allergen-control practices; individuals with severe tree-nut allergies should contact the producer to confirm facility practices.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Pesticide residue
No recalls or published contamination data for La Tourangelle grapeseed oil. As a byproduct of wine production, grape seeds receive fewer direct pesticide applications than commodity crops, but residues are rarely tested or disclosed by the brand.
Source, EPA ↗Heavy metals
Grapeseed oil products have not been flagged for lead, cadmium, or arsenic in independent testing. Oils generally accumulate fewer heavy metals than whole plant tissues, but no third-party data is readily available for this specific brand.
Source, FDA ↗Solvent residues (extraction method)
La Tourangelle emphasizes cold-pressing, which avoids hexane or other chemical solvents used in some industrial seed-oil extraction. No solvent residue recalls or warnings are on record for this brand.
The full breakdown
The brand's record and disclosure
La Tourangelle is a French oil producer owned by Groupe Limagrain, a cooperative with long-standing heritage in food production. The brand emphasizes artisanal cold-pressing and organic certification (in some product lines) but does not typically publish detailed third-party heavy-metal or contaminant testing on its website. No major recalls or controversies related to contamination are on record for this brand in North American markets. Transparency on pesticide residue testing is limited but not unusual for commodity oils.
How it compares in its category
Grapeseed oil sits in the mid-tier of cooking oils by price and smoke point (around 420F, suitable for sautéing and light frying but not high-heat searing). It is less prone to rancidity than flaxseed or walnut oils and more stable than extra-virgin olive oil at moderate temperatures. Compared to seed oils from major commodity crops (canola, soy), grapeseed carries lower residual pesticide load because it is a food-processing byproduct rather than a primary agricultural target, though testing is rarely published.
If you buy it
Store in a cool, dark place or refrigerator to slow oxidation; grapeseed oil oxidizes faster than olive oil due to high polyunsaturated fat content. Use within 1-2 years of purchase; check for rancid smell (cardboard-like, off) before cooking. Avoid prolonged heating above 420F to prevent breakdown of beneficial compounds and formation of oxidation byproducts. Decant into a smaller opaque bottle if you store it long-term to minimize light exposure.
What we don’t know
- Basis
- Model estimate, 95% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Grapeseed Oil has made none
Formulations change between production runs, so check the current label. How we grade.
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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.