Premier Space-Saving Hard-Anodized Nonstick vs Rio Advanced 3qt Ceramic Nonstick Sauce Pan with Lid: which is safer?
GreenPan Rio Advanced 3qt Ceramic Nonstick Sauce Pan with Lid is the clear pick. Calphalon Premier Space-Saving Hard-Anodized Nonstick carries a failing PFAS grade, and we never recommend buying a failing product.
Calphalon
Premier Space-Saving Hard-Anodized Nonstick
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleNonstick coating degradation and leaching
PossibleTeflon-type coating fume inhalation (thermal degradation)
ReportedCoating separation or peeling over time
Our pick
GreenPan
Rio Advanced 3qt Ceramic Nonstick Sauce Pan with Lid
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleCeramic coating degradation over time
Where these two actually differ
- We flag Nonstick coating degradation and leaching, PTFE fume inhalation (thermal degradation) and Coating separation or peeling over time on the Calphalon and not on the GreenPan.
- We flag Ceramic coating degradation over time on the GreenPan and not on the Calphalon.
- The Calphalon is Hard-anodized aluminum with proprietary nonstick coating (unspecified) where the GreenPan is ceramic nonstick coating, which is most of the difference in these two grades.
- The gap is 75 points, wide enough that this is not a close call, and the GreenPan is the one to buy.
- We are less certain about the Calphalon grade, at 35% confidence against 78%, 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 nonstick saucepans: see the full ranking