Crisco · Cast Iron Cookware Seasoning
Cast Iron Chris Seasoning & Maintenance Compound
Lower concern. Traditional seasoning oil carries minimal PFAS risk.
Cast iron seasoning compounds are typically mineral oil or plant oil based, without fluorinated coatings. No PFAS disclosure found, but core material is inherently low-risk.
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 wax 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
Cast Iron Chris is formulated as a mineral oil and wax blend, designed to build and maintain seasoning layers on cast iron cookware. Mineral oil is a highly refined petroleum derivative with minimal volatility at room temperature and typical cooking heats under 400°F. The wax component (likely paraffin or beeswax) provides adhesion and protective film formation. This combination does not contain Teflon-type coating (Teflon), ceramic coatings, or enamel glazes, eliminating risks tied to those material classes.
The brand's record and disclosure
Crisco has not made public statements about PFAS content in this seasoning compound, and no independent testing on record definitively establishes PFAS presence or absence. The brand has a long history in food-safe oil products with generally transparent ingredient labeling for culinary oils, though this maintenance product receives less scrutiny than cooking oils. No recalls or safety warnings specific to Cast Iron Chris seasoning have been issued by the FDA or CPSC.
How it compares in its category
Traditional oil and wax seasoning blends are the safest category option compared to spray-on Teflon-type coating coatings or silicone-based products, which carry higher fume and off-gassing risk. Mineral oil formulations are chemically inert and have been used for cast iron maintenance for decades without documented leaching into food. Alternatives like flaxseed oil or food-grade lard can become rancid and attract bacteria; mineral oil avoids this problem.
If you buy it
Apply thin coats in a well-ventilated space and wipe away excess to prevent sticky buildup. Do not heat the product above 200°F during application; allow seasoning to cure at room temperature for several hours. Replace or reapply when cast iron shows rust spots or dull finish. Store in a cool, dry place and discard if the product develops an off odor or separates, which signals potential microbial contamination or component breakdown.
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 (accidental)
If residual product is not fully wiped from cookware before cooking, ingestion of mineral oil in small amounts poses minor risk; mineral oil is a known laxative at higher doses but food-contact residues are typically negligible.
Rancidity and microbial growth
If the product container is left open, contaminated with water, or stored in warm conditions, the blend may degrade or support bacterial/fungal growth; this is a storage and application hygiene issue rather than an inherent toxicity hazard.
Inhalation of mineral oil vapor during application
Mineral oil has a high flash point and minimal volatility at room temperature; no respiratory hazards are established for normal seasoning application, especially in ventilated spaces.
Coating degradation and iron leaching
This product is applied to build seasoning, not to degrade it; mineral oil does not chemically attack cast iron and does not cause the cookware itself to leach iron at unsafe levels into food.
Heavy metals or contaminants in mineral oil base
Food-grade mineral oil is subject to loose regulatory oversight, but no recalls or documented contamination of Crisco-branded mineral oil products with lead, cadmium, or other heavy metals have been reported; crude mineral oil quality varies by refinery.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 78% 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.