HA1 Expert Cookware Nonstick Double Burner Griddle vs Rio Advanced Ceramic Nonstick Griddle: which is safer?
GreenPan Rio Advanced Ceramic Nonstick Griddle is the clear pick. All-Clad HA1 Expert Cookware Nonstick Double Burner Griddle carries a failing PFAS grade, and we never recommend buying a failing product.
All-Clad
HA1 Expert Cookware Nonstick Double Burner Griddle
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleTeflon-type coating fume emission risk (inferred coating type)
PossibleCoating degradation and flaking over time
ReportedBrand transparency and certifications gap
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 fume emission risk (inferred coating type), Coating degradation and flaking over time and Brand transparency and certifications gap 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 Nonstick coating (type unspecified); hard-anodized aluminum base where the GreenPan is Ceramic-based 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 All-Clad grade, at 35% confidence against 72%, 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 griddle pans: see the full ranking