Safety Instructions Operating InstructionsSafety Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Consumer Support9Selecting types of cookware. ge.comStainless Steel:recommendedAluminum:heavy weight recommendedGood conductivity. Aluminum residuessometimes appear as scratches on thecooktop, but can be removed if cleanedimmediately. Because of its low meltingpoint, thin weight aluminum should notbe used.Copper Bottom:recommendedCopper may leave residues which canappear as scratches. The residues can beremoved, as long as the cooktop iscleaned immediately. However, do not letthese pots boil dry. Overheated metal canbond to glass cooktops. An overheatedcopper bottom pot will leave a residuethat will permanently stain the cooktopif not removed immediately.Porcelain Enamel-Covered Cast Iron:recommendedAs long as the cookware is coveredcompletely with porcelain enamel, thiscookware is recommended. Caution isrecommended for cast iron cookwarethat is not completely covered withsmooth porcelain enamel, since it mayscratch the glass ceramic cooktop.Glass-Ceramic:usable, but not recommendedPoor performance. May scratch thesurface.Stoneware:usable, but not recommendedPoor performance. May scratch thesurface.Check pans for flat bottoms byusing a straight edge.Pans with rounded, curved, ridgedor warped bottoms are notrecommended.