Le Creuset Rectangular Oven Tray
Lower concern, enameled cast iron is traditional nonstick without Teflon-family coating.
Le Creuset's rectangular oven tray is enameled cast iron, a lower-PFAS option versus modern synthetic nonstick coatings. The glass enamel doesn't rely on PFAS chemistry.
We flunk more products than we pass. This one earned its grade. How we grade
Material
enameled cast iron (vitreous enamel coating)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Category baseline
cookware is a category where PFAS exposure is more common.
Lead
Vintage Le Creuset (pre-1990s) occasionally tested above FDA limits; modern production is assumed compliant but unverified by the brand. Lead leaching increases with acidic food and age-related glaze degradation.
Source: ATSDR ↗Enamel coating degradation and flaking
Dishwasher use, metal utensils, and thermal shock can degrade the enamel over years; flaking exposes underlying cast iron. Flakes themselves are not a primary health risk, but exposure of bare iron increases leaching potential.
Iron leaching from cast iron base
If the enamel is significantly damaged, iron leaching can occur, particularly with acidic foods (tomatoes, vinegar). Iron supplementation is generally beneficial for most populations, but high intake may be a concern for those with hemochromatosis or iron-overload conditions.
What’s reassuring
Safe base material
Made from ceramic, mineral, or natural fiber with no PFAS risk.
Cadmium
No published reports of cadmium in Le Creuset enamels. Modern EU and US regulations restrict cadmium in food contact ceramics; Le Creuset enamels are assumed compliant, though independent verification is lacking.
Source: ATSDR ↗Thermal conductivity and burn risk
Cast iron holds heat intensely and unevenly; handles can become extremely hot. This is a use hazard (burns) rather than a material hazard, but notable for households with children.
The full breakdown
What it's made of and why it matters
Le Creuset rectangular oven trays are enameled cast iron: a cast iron base coated with a vitreous (glass-like) enamel layer. This enamel is fused at high temperature to create a durable, nonstick surface without synthetic Teflon-family coating like Teflon-type coating. The enamel coating is the safety-critical barrier between food and the iron underneath; if compromised, iron leaching becomes possible, though cast iron iron itself is not toxic at normal dietary levels.
The brand's record and disclosure
Le Creuset does not publicly disclose detailed chemical composition or third-party safety testing for its enamels, which is typical for the cookware industry. The brand has no known product recalls for lead contamination in recent years (modern enamels meet FDA standards); however, vintage Le Creuset pieces from the 1960s-1970s occasionally show elevated lead in the glaze. Current production is assumed compliant with FDA lead limits (below 10 ppm leachable) but verification requires independent testing.
How it compares in its category
Enameled cast iron (Le Creuset, Staub, Lodge) avoids PFAS entirely, unlike traditional nonstick aluminum or steel cookware with Teflon-type coating coatings. It is heavier and more durable than ceramic or silicone alternatives but requires more maintenance (hand-washing, avoiding thermal shock). Among premium enameled cast iron brands, Le Creuset commands the highest price and has the strongest historical reputation for enamel durability, though performance is comparable to Staub at similar cost.
If you buy it
Hand-wash only; dishwasher damage to the enamel is the most common failure mode. Avoid thermal shock (do not move directly from oven to cold water). Do not use metal utensils on the enamel surface; plastic or wood prevents scratching. If the enamel chips or cracks significantly, replacement is advisable to prevent iron oxidation. Store dry to prevent rust on exposed cast iron rims.
What we don’t know
- Basis
- Model estimate, 82% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Le Creuset has made none
Formulations change between production runs, so check the current label. How we grade.
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Staub
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enameled cast iron
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Limited concern
Thermal stress fracture of enamel
Moderate concern
Lower PFAS concern, enameled cast iron baking dishes without nonstick coating.
⚠Risky category by default
More bakeware 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.