Vermicular · Dutch Ovens
Great Jones The Dutchess Dutch Oven
Lower concern, traditional enameled cast iron with no nonstick coating or reported PFAS issues.
The Great Jones Dutchess (made by Vermicular) is a traditional enameled cast iron Dutch oven with no nonstick coating, eliminating the primary PFAS risk vector in cookware. Vermicular does not make PFAS claims, but the product category itself, plain enamel over cast iron, carries lower inherent concern.
Shop Vermicular on Amazon →Material
enameled cast iron
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Uncoated safe material
Bare, uncoated material (cast iron, stainless, carbon steel, or glass) with no surface treatment to contain PFAS.
Category baseline
cookware is a category where PFAS exposure is more common.
The full breakdown
What it's made of and why it matters
The Dutchess is enameled cast iron: a cast iron core coated with a vitreous enamel glaze (fused glass-like surface). This construction eliminates the primary cookware leaching risk (bare iron) while the enamel barrier prevents direct food contact with the metal. Vermicular's enamel is proprietary but follows traditional kiln-fired methods that create a durable, inert surface. No nonstick coating means no Teflon-type coating and no risk of fume release if accidentally overheated.
The brand's record and disclosure
Vermicular (Japanese manufacturer owned by Sumitomo) does not publish detailed third-party test reports or material certifications on their website, nor do they prominently market PFAS absence. However, no recalls, safety violations, or hazard reports are on record for this product. The brand has built reputation on heritage craftsmanship rather than regulatory transparency, which is typical for premium enameled cookware makers. No substantiated controversies regarding lead, cadmium, or other toxic glazing agents have emerged in independent reviews or consumer databases.
How it compares in its category
Enameled cast iron (Le Creuset, Staub, Vermicular, Lodge) is the safest major cookware category by hazard profile: no Teflon-type coating, no aluminum leaching, no nonstick degradation risk. Vermicular sits at the premium end of this already-safe segment, with Japanese enamel known for durability and smoothness. Price is significantly higher than Lodge or generic enameled cast iron, but hazard exposure does not meaningfully differ across major brands in this category.
If you buy it
Avoid stovetop temperatures above medium-high; enameled cast iron performs best with moderate, even heat and is less forgiving than uncoated iron if thermal shock occurs. Hand wash and dry immediately after use to prevent moisture pooling at lid edges, which can degrade enamel over years. Inspect the enamel surface annually for chips or cracks; if large defects expose cast iron, discontinue use or strip and re-season the bare metal. Do not use metal utensils that scratch the glaze; this accelerates wear but does not pose acute chemical risk if the base enamel remains intact.
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.”
Lead/cadmium in enamel glaze
No reported lead or cadmium contamination in Vermicular enameled cookware. Modern kiln-fired enamels from established manufacturers meet food-contact standards, but Vermicular does not publish independent test results confirming absence.
Enamel coating degradation and chipping
Aluminum leaching
This product is cast iron with enamel coating, not aluminum cookware. Aluminum leaching is not a relevant hazard class for this material composition.
Teflon-type coating/nonstick fume risk
Enameled cast iron uses no nonstick coating. Teflon-type coating fume risk from overheating does not apply to this product design.
Heavy metals in food contact via porosity or manufacturing residue
Cast iron manufacturing and enamel firing can leave trace metals (iron, manganese, nickel) in the surface. Levels are generally considered safe for typical use, but Vermicular does not disclose heavy metal leachate testing specific to this product line.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 85% 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.
More dutch ovens 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.