Crisco · Cast Iron Cookware Seasoning
Cast Iron Seasoning Spray
Lower concern. Crisco seasoning spray is oil-based, not a PFAS-prone coating.
Crisco cast iron seasoning spray is a mineral and soy oil blend applied to bare cast iron. No PFAS-typical non-stick or water-resistant coatings involved. Lower concern product.
The safe swap
Coconut Oil
Cast Iron Ultimate Bundle
90/100 safety
Same rubric that flunked this product. The swap earned its A.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
mineral oil and soy-based blend
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Category baseline
cookware is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
Crisco Cast Iron Seasoning Spray is a blend of mineral oil and soy-based components designed to build seasoning layers on cast iron cookware. Mineral oil is a refined petroleum byproduct that is food-grade and chemically stable at typical stovetop temperatures; soy oil is a triglyceride that polymerizes when heated, forming the non-stick patina characteristic of seasoned cast iron. Neither component is known to degrade, leach, or off-gas at the temperatures cast iron typically reaches in home cooking (below 500F for most uses).
The brand's record and disclosure
Crisco, owned by B&G Foods, has not publicized specific safety testing or third-party certifications for this spray product. The parent company maintains food-safety compliance for its core shortening products but does not make detailed chemical disclosures on this specific seasoning spray. No recalls or safety complaints related to this product are on public record. Crisco's silence on PFAS is consistent with the product's formulation: mineral oil and soy-based oils are not synthetic Teflon-family coating and do not inherently contain PFAS.
How it compares in its category
Cast iron seasoning sprays occupy a simpler safety profile than most cookware because they are applied topically and not bonded to a substrate; they rely on heat and oxidation to work, not synthetic coatings. This spray is broadly equivalent to other mineral-oil-based seasoning sprays (e.g., Canola Cooking Spray applied to cast iron). It avoids the risk profile of non-stick coated cookware (which may shed microparticles or off-gas Teflon-type coating) and ceramic-enamel cast iron (which can chip and expose bare iron or underlying glazes).
If you buy it
Apply thinly and wipe excess to avoid sticky buildup; heat the cast iron in a 400-500F oven for 15-20 minutes after spraying to polymerize the oil into a durable layer. Do not use on high-heat stovetop applications above 500F repeatedly, as mineral oil can smoke and degrade. Reapply every few months or after heavy use or washing. Store spray in a cool, dry place away from heat to prevent oxidation of the soy oil component.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Mineral oil ingestion (systemic absorption)
Food-grade mineral oil is approved by FDA and is not absorbed by the gastrointestinal tract; it passes through the body unchanged. No toxicity data supports concern from residual spray on cast iron cookware used normally.
Soy oil oxidation and rancidity
Soy oil is prone to oxidative degradation over time and with exposure to heat and light. Rancid oil may develop off-flavors or mild gastrointestinal upset if ingested in quantity, but seasoning layer application is minimal and polymerized, reducing ingestion risk.
Spray aerosolization and inhalation
Inhaling fine oil mist during application may irritate respiratory tract in sensitive individuals or with poor ventilation. This is not specific to this product but is inherent to spray-based application; using in a well-ventilated kitchen mitigates risk.
Propellant composition
Crisco does not publicly disclose the propellant used in this spray. Food-contact sprays typically use nitrogen, carbon dioxide, or food-grade hydrocarbon propellants. Without disclosure, specific propellant hazards cannot be assessed, but common food-spray propellants carry no established toxicity at use levels.
Coating degradation and cast iron corrosion
If spray is applied too heavily or inconsistently, bare cast iron may rust between applications. This is a usability issue, not a chemical toxicity hazard specific to the product formulation.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 82% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Cast Iron Cookware Seasoning
Coconut Oil
Cast Iron Ultimate Bundle
cast iron, bare or seasoned with coconut oil
Lower PFAS concern. Bare cast iron is inherently PFAS-free.
⚠Risky category by default
Soybean Oil
Crisbee Puck Cast Iron Seasoning
Soybean oil, beeswax blend
Lower concern. Traditional seasoning oil without non-stick coatings.
⚠Risky category by default
Hemp Oil
Carrington Farms Hemp Oil
Hemp seed oil, liquid cooking oil
Lower concern. Unrefined plant oil has no known PFAS risk.
⚠Risky category by default
More cast iron cookware seasoning 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.