HA1 Expert Cookware Nonstick Square Griddle 11" 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 Square Griddle 11" carries a failing PFAS grade, and we never recommend buying a failing product.
All-Clad
HA1 Expert Cookware Nonstick Square Griddle 11"
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleTeflon-type coating fume risk (thermal decomposition)
PossibleAluminum leaching
ReportedNonstick coating degradation and peeling
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 risk (thermal decomposition), Nonstick coating degradation and peeling and Lack of material transparency on the All-Clad and not on the GreenPan.
- We flag Ceramic coating degradation and flaking on the GreenPan and not on the All-Clad.
- Both carry a flag for Aluminum leaching, so neither choice avoids it.
- 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