Hard Anodized Nonstick Square Griddle vs Rio Advanced Ceramic Nonstick Griddle: which is safer?
GreenPan Rio Advanced Ceramic Nonstick Griddle is the clear pick. All-Clad Hard Anodized Nonstick Square Griddle carries a failing PFAS grade, and we never recommend buying a failing product.
All-Clad
Hard Anodized Nonstick Square Griddle
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleTeflon-type coating nonstick coating fume risk
PossibleCoating degradation and flaking
PossibleHeat-induced polymer degradation
Our pick
GreenPan
Rio Advanced Ceramic Nonstick Griddle
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleCeramic coating degradation and flaking
PossibleAluminum leaching
Where these two actually differ
- We flag PTFE nonstick coating fume risk, Coating degradation and flaking, Heat-induced polymer degradation and Lack of transparency on PFAS formulation on the All-Clad and not on the GreenPan.
- We flag Ceramic coating degradation and flaking and Aluminum leaching on the GreenPan and not on the All-Clad.
- The All-Clad is Hard-anodized aluminum with PTFE-based nonstick coating where the GreenPan is Ceramic-based nonstick 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 GreenPan is the one to buy.
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 griddle pans: see the full ranking