GE PP972SMSS Use and Care Manual - Page 10

Selecting types of cookware. The following information will help you choose cookware which will give good performance on glass cooktops. Stainless Steel: recommended Porcelain Enamel on Cast Iron: recommended if bottom of pan is coated Check pans for flat bottoms by using a straight edge. Aluminum: heavy weight recommended Good conductivity. Aluminum residues sometimes appear as scratches on the cooktop, but can be removed if cleaned immediately. Because of its low melting point, thin weight aluminum should not be used. Copper Bottom: recommended Copper may leave residues which can appear as scratches. The residues can be removed, as long as the cooktop is cleaned immediately. However, do not let these pots boil dry. Overheated metal can bond to glass cooktops. An overheated copper bottom pot will leave a residue that will permanently stain the cooktop if not removed immediately. Porcelain Enamel on Steel: not recommended Heating empty pans can cause permanent damage to cooktop glass. The enamel can melt and bond to the ceramic cooktop. Glass-ceramic: not recommended Poor performance. Will scratch the surface. Stoneware: not recommended Poor performance. May scratch the surface. Cast Iron: not recommended-unless designed specifically for glass cooktops Poor conductivity and slow to absorb heat. Will scratch the cooktop surface. Pans with rounded, curved, ridged or warped bottoms are not recommended. NOTE: Follow all cookware manufacturer's recommendations when using any type of cookware on the ceramic cooktop. Do not place wet pans on the glass cooktop. Do not use woks with support rings on the glass cooktop. For Best Results  Place only dry pans on the surface elements. Do not place lids on the surface elements, particularly wet lids.  Do not use woks that have support rings. This type of wok will not heat on glass surface elements.  We recommend that you use only a flatbottomed wok. They are available at your local retail store. The bottom of the wok should have the same diameter as the surface element to ensure proper contact.  Some special cooking procedures require specific cookware such as pressure cookers, deep-fat fryers, etc. All cookware must have flat bottoms and be the correct size. Use flat-bottomed woks 10 on the glass cooktop.