NS Pro Nonstick Cookware Double Burner Griddle vs Rio Advanced Ceramic Nonstick Griddle: which is safer?

GreenPan Rio Advanced Ceramic Nonstick Griddle is the clear pick. NS Pro Nonstick Cookware Double Burner Griddle carries a failing PFAS grade, and we never recommend buying a failing product.

NS Pro Nonstick Cookware Double Burner Griddle

All-Clad

NS Pro Nonstick Cookware Double Burner Griddle

PFAS grade

Bad 15/100

Overall grade

Bad 0/100

Verdict

Skip

Hazard flags

⚑ 4

Material

Nonstick coating (type unspecified by All-Clad)

Confidence

35%

PossibleTeflon-type coating fume risk (thermal decomposition)

ReportedCoating degradation and microflaking

PossibleAluminum leaching (if aluminum substrate)

Our pick

GreenPan Rio Advanced Ceramic Nonstick Griddle

GreenPan

Rio Advanced Ceramic Nonstick Griddle

PFAS grade

Excellent 90/100

Overall grade

Excellent 82/100

Verdict

Buy

Hazard flags

⚑ 2

Material

Ceramic-based nonstick coating

Confidence

72%

PossibleCeramic coating degradation and flaking

PossibleAluminum leaching

Where these two actually differ

  • We flag PTFE fume risk (thermal decomposition), Coating degradation and microflaking, Aluminum leaching (if aluminum substrate) and Lack of manufacturer transparency on nonstick chemistry 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 by All-Clad) 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