9Selecting types of cookware. ge.comThe following information will help you choose cookware which will give good performance on glass cooktops.Stainless 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 is cleanedimmediately. However, do not let these potsboil dry. Overheated metal can bond toglass cooktops. An overheated copperbottom pot will leave a residue that willpermanently stain the cooktop if notremoved 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 with smoothporcelain enamel, as it may scratch theglass-ceramic cooktop.Glass-ceramic:usable, but not recommendedPoor performance. May scratch the surface.Stoneware:usable, but not recommendedPoor performance. May scratch the surface.Home Canning Tips:Be sure the canner is centered over thesurface unit.Make sure the canner is flat on the bottom.Use recipes and procedures fromreputable sources. These are availablefrom manufacturers such as Ball® andKerr® and the Department of AgricultureExtension Service.To prevent burns from steam or heat, usecaution when canning.Check pans for flat bottoms by usinga straight edge.Pans with rounded, curved,ridged or warped bottoms arenot recommended.Wok CookingWe recommend that you use only a flat-bottomedwok. They are available at your local retail store.Do not use woks that have support rings.Use of these types of woks, with or withoutthe ring in place, can be dangerous.Placing the ring over the surface unit willcause a buildup of heat that will damagethe porcelain cooktop. Do not try to usesuch woks without the ring. You could beseriously burned if the wok tips over.Use only flat-bottomed woks.OperatingInstructions Care and Cleaning InstallationInstructions Troubleshooting TipsSafety Instructions Consumer SupportUse medium- or heavy-weight cookware.Aluminum cookware conducts heat fasterthan other metals. Cast-iron and coatedcast-iron cookware are slow to absorb heat,but generally cook evenly at low to mediumheat settings. Steel pans may cook unevenlyif not combined with other metals.For best cooking results, pans should beflat on the bottom. Match the size of thesaucepan to the size of the surface unit.The pan should not extend over the edgeof the surface unit more than 1 inch.Not over 1 inch1″The following information will help you choose cookware which will give good performance on coil cooktops.Surface Cookware Tips