Field Company · Cast Iron Cookware Seasoning & Oil
Field Company Cast Iron Seasoning Oil 2 oz Tin
Almond oil seasoning lacks known PFAS risk factors.
This almond or mineral-based seasoning oil needs no water or stain resistance treatment. Plant and mineral oils don't typically contain PFAS.
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
Almond oil, mineral oil base
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Field Company Cast Iron Seasoning Oil Tin is made of, ingredients and materials
This product is almond oil, a plant-derived triglyceride commonly used in food and cosmetics, paired with a mineral oil base for stability and workability on cast iron. Almond oil has a smoke point around 420F (216C), which is adequate for seasoning but below heavy cooking temperatures. Unlike synthetic coatings (Teflon-type coating) or problematic polymers, food-grade oils present no volatilization hazard or coating-degradation byproducts when used as directed on cast iron.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Rancidity and lipid oxidation
Almond oil is a polyunsaturated fat prone to oxidative degradation if exposed to heat, light, or air over time. While a sealed 2 oz tin minimizes this risk during storage, once opened the product may develop off-flavors or free-radical compounds if left unsealed for months.
Tree nut allergen cross-contamination
Almond oil is derived from tree nuts. Although highly refined almond oil retains minimal allergenic protein, no public statement from Field Company confirms allergen-control procedures in manufacturing. Cross-contact risk is low but present for nut-allergic households.
Coating buildup and cookware performance
Excessive or thick application of oil seasoning can create sticky, uneven layers that degrade cooking performance or attract dust and debris. This is a usability issue rather than a toxicological hazard, but improper use may force discarding of product or re-stripping cookware.
Smoke and thermal degradation at high cooking temperatures
Almond oil's smoke point (420F) is lower than refined canola or avocado oil. If cast iron seasoned with this product is used for high-heat frying or searing, the oil layer may break down and smoke, producing aldehydes and other volatile compounds; this risk is primarily respiratory irritation rather than toxicant accumulation.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Mineral oil leaching or ingestion
Food-grade mineral oil in small quantities on cast iron is not a recognized toxicity concern in standard safety literature. Mineral oil used for seasoning does not dissolve into food or leach into cookware under normal use conditions.
How is this PFAS grade calculated?
The brand's record and disclosure
Field Company does not maintain a public detailed disclosure on chemical testing, certifications, or third-party verification for this seasoning oil product. No recall history or safety controversies are on record for this specific item. The brand's general stance on ingredients is minimal; typical for a small cookware accessory line. Buyers should not expect extensive ingredient breakdowns or allergen labeling beyond the obvious nut content.
How it compares in its category
Cast iron seasoning oils vary widely, mineral-oil-only products offer stability but no nutritional value, while pure food oils (grapeseed, avocado) provide better cooking performance but can gum up over time. Almond oil blends occupy a middle ground, balancing food-grade safety with reasonable shelf stability. This product avoids the Teflon-type coating-fume risk of aerosol spray seasonings and the potential rancidity issues of unblended nut oils stored long-term.
If you buy it
Apply thin layers to clean cast iron and wipe off excess to avoid sticky buildup; use below 420F for cooking. Store in a cool, dark place to prevent oxidation and rancidity; a 2 oz tin should last many months with normal use. Discard if the oil develops an off smell (sign of oxidative breakdown) or if the tin shows rust or sealing damage. This product is intended for seasoning maintenance, not as a cooking oil for skillet use.
What is not known about PFAS in this product?
- Basis
- Model estimate, 82% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Field Company has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Field Company Cast Iron Seasoning Oil 2 oz Tin?
- 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.