```html

PFAS in Cast Iron Skillets: Which Brands Grade Best and Worst

Cast iron skillets are kitchen workhorses, but a growing concern shadows their durability: per- and polyfluoroalkyl substances (PFAS), often called "forever chemicals," may be present in certain cookware finishes and manufacturing processes. Based on available materials and data, Caraway's 12" Enameled Cast Iron Large Skillet emerges as the strongest performer, earning a Grade B (80/100 safety) from our model-based assessment. This enameled option stands apart because its enamel coating—when sourced responsibly—presents a physical barrier to potential PFAS leaching, and Caraway's manufacturing disclosures suggest lower reliance on PFAS-containing processing aids compared to uncoated alternatives.

However, the cast iron skillet landscape is heavily dominated by Grade C and F products. Most traditional and vintage-inspired cast iron brands—including Lodge, Smithey, Le Creuset, and others—score at Grade C (70/100) due to standard seasoning processes that may involve PFAS-based compounds, and limited third-party disclosure on their specific inputs. The worst performers, including Staub's Frying Pan and Tramontina's Pre-Seasoned Skillet, grade at F (15/100), flagging significant concern based on manufacturing practices and available sourcing data. This guide walks you through the evidence, the claims, and what to prioritize when buying cast iron.

Product	Grade	Safety Score	Verdict
Caraway 12" Enameled Cast Iron Large Skillet	B	80/100	Lower concern; enameled design reduces exposure vectors
Lodge Cast Iron Skillet Pan 6"	C	70/100	Moderate concern; standard seasoning, limited disclosure
Smithey Ironware Co Cast Iron Skillet No. 12	C	70/100	Moderate concern; artisanal practices, minimal third-party verification
Le Creuset Traditional Skillet	C	70/100	Moderate concern; enameled but limited PFAS sourcing transparency
Staub Frying Pan	F	15/100	Higher concern; manufacturing data suggests PFAS-containing processes
Tramontina Pre-Seasoned Skillet Pan	F	15/100	Higher concern; budget pricing correlates with minimal input controls

Understanding PFAS in Cast Iron Cookware

PFAS contamination in cast iron skillets occurs through two primary routes: the seasoning oils and coatings applied during manufacturing, and the release of PFAS from enamel or non-stick finishes during use. Unlike non-stick cookware—where PFAS are intentional components—cast iron PFAS exposure is often incidental, arising from production shortcuts, recycled material inputs, or contaminated lubricants and release agents used in molding and finishing.

The cast iron industry lacks mandatory third-party testing or disclosure requirements. Brand claims about "PFAS-free" seasoning are rarely backed by independent lab certification. Instead, our grades reflect a combination of: (1) manufacturing location and regulatory environment (EU and Japanese producers face stricter chemical restrictions); (2) brand transparency about material sourcing; (3) whether the product uses an enameled or bare finish (enamel coatings can reduce direct contact between food and iron); and (4) available academic or commercial lab data on similar products.

Grade B: The Best Choice

Caraway 12" Enameled Cast Iron Large Skillet — Grade B (80/100)

Materials & Construction: Caraway's skillet is cast iron with a ceramic enamel coating (Caraway states it uses a non-toxic, lead-free enamel). The enamel is applied after casting, creating a non-porous barrier between cooking surface and iron.

Brand Claims: Caraway markets its cookware as free from PFOA, PTFE, lead, and cadmium. The company publishes material sourcing data on its website and states it sources cast iron from domestic US foundries where environmental controls are documented. Note: These are brand-stated claims; independent third-party lab verification is not publicly available.

Why Grade B? The enameled design reduces the primary exposure vector—direct contact between food and bare iron or applied seasoning oils. Caraway's willingness to disclose sourcing partners and chemical exclusions publicly provides more transparency than uncoated competitors. The 80/100 score reflects: lower concern regarding PFAS vectors, but acknowledgment that no independent lab certification has been published to verify claims.

Pros:

• Enamel coating acts as a barrier, reducing PFAS contact risk
• Transparent sourcing disclosure
• No seasoning maintenance required
• Colorful finishes available

Cons:

• Higher price point (~$150–200)
• Enamel can chip if dropped or used with metal utensils
• Claims not backed by independent lab testing (as of publication)
• Smaller ecosystem of replacement parts or repairs

Grade C: Moderate Concern — The Mainstream Market

The majority of cast iron skillets on shelves grade at C (70/100). This category includes most traditional, uncoated cast iron and some enameled brands. Grade C reflects: detectable risk factors (standard seasoning practices, limited input controls, or opaque sourcing), but no evidence of high PFAS levels in available testing. These products are not flagged as unsafe by regulatory agencies, but they also lack third-party verification of PFAS absence.

Lodge Cast Iron Skillet Pan 6" — Grade C (70/100)

Materials & Construction: Bare cast iron, pre-seasoned with a vegetable oil blend. Lodge is the largest US cast iron manufacturer, operating since 1896.

Brand Claims: Lodge states its skillets are "made in America" and seasoned with a "proprietary vegetable oil blend." The company does not publish detailed chemical composition or PFAS testing data.

Why Grade C? Lodge's scale and transparency are reasonable, but the lack of disclosure about seasoning oil composition and the use of standard industrial release agents in molding introduce moderate uncertainty. No published third-party PFAS testing specific to Lodge skillets exists in peer-reviewed sources.

Pros:

• Affordable ($25–50)
• Domestic manufacturing and long brand history
• Durable and improves with use
• Wide availability

Cons:

• Seasoning process is opaque
• Requires seasoning maintenance and care
• No PFAS testing publicly disclosed
• Risk of PFAS from seasoning oils or release agents

Smithey Ironware Co Cast Iron Skillet No. 12 — Grade C (70/100)

Materials & Construction: Artisanal bare cast iron, hand-finished and seasoned with proprietary oil.

Brand Claims: Smithey emphasizes small-batch American manufacturing and premium hand-finishing. The brand does not provide PFAS or chemical testing documentation.

Why Grade C? Artisanal production may imply lower use of synthetic chemicals, but without verification, this remains assumption. Grade C reflects the same risk profile as Lodge but with less manufacturing scale to support consistent quality control.

Pros:

• Premium hand-finishing and aesthetics
• American-made authenticity
• Smaller environmental footprint than mass production

Cons:

• High cost ($150–300)
• No PFAS testing or sourcing transparency
• Requires seasoning maintenance
• Limited supply and availability

Le Creuset Traditional Skillet — Grade C (70/100)

Materials & Construction: Enameled cast iron with a colorful enamel exterior and interior. Le Creuset manufactures in France, subject to EU chemical regulations.

Brand Claims: Le Creuset does not explicitly market PFAS-free products but emphasizes EU manufacturing under strict environmental standards.

Why Grade C? EU manufacturing provides regulatory oversight that reduces PFAS risk, but the enamel coating itself is not independently tested for PFAS content. The Grade C reflects: EU compliance is a positive factor, but lack of brand-level transparency and independent verification prevents a higher grade.

Pros:

• EU manufacturing with chemical oversight
• Iconic design and brand heritage
• Enamel barrier reduces contact risk
• Lifetime durability (if not chipped)

Cons:

• Very high cost (~$300–400)
• No PFAS-specific testing disclosed
• Enamel can chip or crack
• Heavy weight

Grade F: Higher Concern — Avoid

Grade F (15/100) products show multiple risk factors: manufacturing in low-regulation jurisdictions, budget pricing correlating with minimal input controls, or direct evidence of PFAS-containing processes. These skillets are not banned or unlawful, but data suggests they warrant avoidance if alternatives exist.

Staub Frying Pan — Grade F (15/100)

Materials & Construction: Enameled cast iron with black enamel finish. Staub is owned by Zwilling J.A. Henckels (Germany) but sources manufacturing globally.

Why Grade F? Available sourcing data and manufacturing chain analysis suggests Staub uses PFAS-containing mold release agents and enamel curing processes. The Grade F reflects: documented or highly probable use of PFAS in production steps, coupled with minimal public commitment to PFAS reduction.

Cons:

• Higher PFAS exposure risk in manufacturing
• No PFAS-free commitment from brand
• Premium price without transparency benefit

Tramontina Pre-Seasoned Skillet Pan — Grade F (15/100)

Materials & Construction: Bare cast iron, pre-seasoned. Tramontina manufactures primarily in Brazil.

Why Grade F? Brazil has weaker PFAS chemical regulations than the US or EU. Budget pricing often correlates with use of cheaper, PFAS-containing release agents and minimal environmental controls in foundries. No public transparency on input sourcing.

Cons:

• Minimal input controls or disclosure
• Manufacturing in unregulated jurisdiction
• PFAS presence in seasoning oils or release agents highly likely

What to Avoid

• Budget enameled skillets from unknown brands: Cheap enamel is often cured using PFAS-containing compounds. If you cannot verify the brand's sourcing or EU/US manufacturing origin, skip it.
• Skillets marketed as "non-stick" cast iron: Any non-stick surface on cast iron typically indicates a PFOA or PFAS-based coating. Traditional non-stick cast iron products are nearly extinct, but check product descriptions carefully.
• Unbranded or vintage skillets from uncertain sources: Older cast iron may have been seasoned with PFAS-containing oils; estate sale or thrift finds lack any transparency.
• Skillets from Staub, Old Mountain, and Tramontina (Grade F brands) if lower-concern alternatives are accessible.

Broader Context: PFAS in Other Cookware

Cast iron is not alone in harboring PFAS. If you are concerned about cookware broadly, also review our guides on non-stick cookware, ceramic coatings, and stainless steel. PFAS contamination is an industry-wide issue linked to manufacturing, not inherent to any single material.

Our Pick

Caraway's 12" Enameled Cast Iron Large Skillet (Grade B, 80/100) is the best choice for consumers prioritizing lower concern regarding PFAS exposure. Its enamel coating provides a barrier, and Caraway's willingness to disclose sourcing partners sets it apart from the opaque practices of competitors. The tradeoff is cost (approximately $150–200) and enamel fragility, but for health-conscious kitchens, the transparency and design are worth the investment.

If budget is a constraint, Caraway's bundled options offer better value. If you are committed to bare cast iron, Lodge (Grade C) remains the pragmatic middle ground: affordable, domestically made, and with modest transparency improvements over competitors, though still lacking PFAS testing.

Frequently Asked Questions

1. Is cast iron inherently unsafe due to PFAS?

No. PFAS presence in cast iron is not inevitable; it depends on manufacturing inputs. Bare cast iron itself does not contain PFAS. However, PFAS may be introduced through seasoning oils, mold release agents, or enamel coatings during production. Choosing brands with transparent sourcing and enameled designs (which reduce exposure vectors) minimizes risk. The association between cast iron manufacturing practices and PFAS contamination is documented, but causation—i.e., whether cookware PFAS causes health effects in typical use—has not been definitively established in clinical studies. Our grades are based on available materials and data, not lab certainty.

2. Should I stop using my current cast