Soybean Oil · Cast Iron Cookware Seasoning
Crisbee Puck Cast Iron Seasoning
Lower concern. Traditional seasoning oil without non-stick coatings.
Crisbee is a soybean and beeswax blend seasoning for cast iron. No PFAS-associated coatings or treatments. Standard cast iron seasoning carries minimal PFAS risk.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Soybean oil, beeswax 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.
The full breakdown
What it's made of and why it matters
Crisbee Puck is a blend of soybean oil and beeswax, designed to polymerize on cast iron when heated to form a non-stick seasoning layer. Soybean oil is a triglyceride-based food-grade oil with a smoke point around 450F, suitable for seasoning applications. Beeswax acts as a hardening agent that helps the oil cure into a durable finish. This formulation contains no synthetic coatings, Teflon-type coating (Teflon), or nano-particles, making it chemically straightforward.
The brand's record and disclosure
Crisbee (made by Soybean Oil LLC, a smaller cookware-specific manufacturer) has maintained a low public profile with minimal formal certifications or third-party testing disclosures. The product has no documented recalls, safety warnings, or controversy in available safety databases. The brand does not explicitly market PFAS-free status but the formulation (traditional oils and wax) inherently excludes PFAS compounds used in modern non-stick coatings.
How it compares in its category
Cast iron seasoning products typically fall into two camps: oil-based blends (like Crisbee) or proprietary sprays that may contain additives or polymers. Crisbee's soybean oil-beeswax approach is more minimal than spray seasonings and avoids synthetic polymers or silicone carriers found in some competitors. It matches the safety profile of traditional seasoning methods (cooking oil alone) but with added durability from beeswax.
If you buy it
Apply thin coats to clean, dry cast iron and wipe away excess before heating to 350-500F in an oven for 15-30 minutes per layer. Do not use on stovetop directly as oil can ignite. The soybean oil base will not degrade the cast iron; beeswax will not flake if applied correctly. Reapply every 6-12 months or after heavy use; no special removal is needed for reapplication.
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.”
Soybean oil oxidation and rancidity
Unopened Crisbee pucks have minimal exposure, but once opened, the exposed soybean oil surface can oxidize over months, potentially producing off-odors or degraded flavor if used on food-contact surfaces. Proper storage in a cool, sealed container mitigates this.
Smoke point and thermal breakdown
Soybean oil's 450F smoke point is adequate for the recommended seasoning oven temperatures (350-500F). No safety hazard is documented when used as directed, though excessive heating beyond 500F could degrade the oil base.
Beeswax purity and contaminants
Commercial beeswax can occasionally contain residual pesticides (from hive treatments) or mold if sourced from poor storage conditions. Crisbee does not disclose beeswax sourcing or testing; risk is low but unverified.
Coating durability and iron leaching
The seasoning layer created by soybean oil-beeswax polymerization protects cast iron from contact with food and liquids, preventing iron oxidation and leaching. No mechanism for hazardous leaching exists with this formulation.
Allergen content (soy, bee products)
Crisbee is not ingested; it remains as a dry, cured coating on cookware. Soybean oil and beeswax are not absorbed into food during normal use, so soy or bee allergies pose no risk from the seasoning itself.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 92% 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
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.