Signature Nonstick 12" Flat-Bottom Wok with Cover vs Carbon Steel Wok: which is safer?
Our Place Carbon Steel Wok is the clear pick. Calphalon Signature Nonstick 12" Flat-Bottom Wok with Cover carries a failing PFAS grade, and we never recommend buying a failing product.
Calphalon
Signature Nonstick 12" Flat-Bottom Wok with Cover
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleTeflon-type coating fume inhalation risk
ReportedNonstick coating degradation and leaching
LikelyUnknown proprietary coating chemistry
Our pick
Our Place
Carbon Steel Wok
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleIron leaching from bare metal surface
LikelyRust formation from improper storage or care
Where these two actually differ
- We flag PTFE fume inhalation risk, Nonstick coating degradation and leaching and Unknown proprietary coating chemistry on the Calphalon and not on the Our Place.
- We flag Iron leaching from bare metal surface and Rust formation from improper storage or care on the Our Place and not on the Calphalon.
- The Calphalon is Nonstick coating (type unspecified) where the Our Place is carbon steel (bare metal, no coating), which is most of the difference in these two grades.
- The gap is 85 points, wide enough that this is not a close call, and the Our Place is the one to buy.
- We are less certain about the Calphalon grade, at 35% confidence against 85%, because it discloses less.
Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
More woks: see the full ranking