NS Pro Nonstick Cookware Square Grill, Is It Non-Toxic?
Teflon-type coating non-stick coating, disclosed by the brand.
All-Clad says its nonstick contains Teflon-type coating, and lists its HA1, Essentials, NS1, D3 and D5 nonstick lines among its Teflon-type coating coated products. Teflon-type coating is a Teflon-family coating in the PFAS family.
The better-graded swap
GreenPan
GreenPan Bobby Flay 11" Cast Iron Square Grill Pan
70/100 safety
Same rubric that flunked this product. The swap earned Good.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Teflon-type coating non-stick coating, as disclosed by All-Clad
Lab data
No public lab test
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Is NS Pro Nonstick Cookware Square Grill non-toxic? What it is made of
This grill pan uses Teflon-type coating (polytetrafluoroethylene), a Teflon-family coating non-stick coating applied over an aluminum or steel base. Teflon-type coating itself is stable at normal cooking temperatures but degrades and releases fumes when overheated above 500°F, a well-documented concern with all Teflon-type coating cookware. All-Clad has disclosed the Teflon-type coating but has not published independent testing or safety data specific to this product's fume threshold or coating durability over time.
What’s concerning
No PFAS disclosure
No PFAS-free statement from the brand for this product.
PTFE / Teflon confirmed
The brand discloses a Teflon-type coating.
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
Teflon-type coating fume risk (thermal decomposition)
Teflon-type coating coatings on cookware release toxic fumes when heated above 500°F. This is a well-established hazard; all-Clad does not publish a documented safe upper temperature limit for this specific model, placing the burden on user discipline.
Coating degradation over time
Non-stick coatings degrade with use, dishwasher exposure, and metal utensil contact. No manufacturer data on expected service life is available; flaking or peeling becomes a source of ingested coating particles if use continues past visible wear.
Aluminum leaching
If the cookware base is aluminum and the Teflon-type coating is compromised or thin, acidic or salty foods may leach aluminum into food. All-Clad does not disclose the substrate material or coating thickness for this model.
PFAS
Teflon-type coating coatings historically contain fluorochemicals (PFAS) used in their manufacture. All-Clad has not disclosed the PFAS profile, alternatives considered, or phase-out plans; this is a persistent systemic concern with all Teflon-type coating non-stick cookware.
Source, ATSDR ↗What’s reassuring
Lead
No recalls or reports of heavy metal contamination in All-Clad cookware are on record. Premium US-made cookware from established manufacturers typically meets FDA limits, but all-Clad has not published independent lab confirmation.
Source, ATSDR ↗How is this PFAS grade calculated?
The brand's record and disclosure
All-Clad is a premium cookware manufacturer owned by Groupe SEB and has a long history in the US market. The company discloses Teflon-type coating non-stick use but takes no public stance on PFAS chemicals or their presence in its coatings. No major product recalls specific to this model are on record, and the brand does not publish third-party safety certifications for non-stick durability or fume safety thresholds.
How it compares in its category
Most square grill pans use Teflon-type coating or ceramic non-stick coatings. Teflon-type coating is more durable and slicker than ceramic but carries the overheating risk; ceramic is lower-concern for fumes but chips more easily. All-Clad's premium pricing positions it above mass-market Teflon-type coating alternatives, but the underlying fume hazard is shared across the Teflon-type coating category. Stainless steel or cast iron grill pans eliminate Teflon-type coating risk entirely but require oil and skill.
If you buy it
Never exceed 400-450°F on the stovetop; most grill pan use stays below this range. Use on medium to medium-high heat only. Ensure good kitchen ventilation, especially during first use or if any discoloration or odor appears on the coating. If the non-stick surface flakes, peels, or shows visible wear, retire the pan rather than continue use. Hand wash only; dishwasher use can accelerate coating breakdown.
What is not known about PFAS in this product?
- Basis
- Model estimate, 42% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- All-Clad has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to NS Pro Nonstick Cookware Square Grill?
- stainless steel, non-nonstick
- Stainless steel nickel or chromium leaching under acidic conditions
- Ceramic nonstick coating (Teflon-type coating-free proprietary formulation)
- The brand calls it PFAS-free, which we have not verified
- Aluminum leaching
3 hazards checked on this product, all on its full breakdown.
- Ceramic nonstick coating (proprietary, Teflon-type coating-free)
- The brand calls it PFAS-free, which we have not verified
- Ceramic coating degradation and flaking
3 hazards checked on this product, all on its full breakdown.
More grill pans 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.