Your product may be warped on the bottom and this may result in poor heat transfer from your stove to the cookware.
Our warranty guarantees your product to be free from defects in materials and workmanship. Warping on the bottom of your pans is not a manufacturing defect and is not covered under our warranty.
If you choose to purchase new product for use with your ceramic/glass top stove, we recommend using product made of stainless steel with a full cap base or stainless steel clad metal product. It is important to match the burner size as closely to the pan size as possible. The main objective is for the product to have flat bottoms for effective heat transfer.
Plain aluminum and hard-anodized aluminum product are also suitable for glass or ceramic cooktops, but may leave metal marks and/or residues on your stovetop that appear to be scratches. Please note that product with rough bottoms can mark or scratch the cooktop surface. DO NOT slide or drag your product on the surface. Glass, ceramic, copper bottom and cast iron cookware is NOT recommended for use on glass cooktops.
Please note that cookware with a painted, porcelain enamel or colored exterior must never be overheated on a glass/ceramic stovetop. Product of this type that is overheated may, in some instances, fuse to the surface of the stovetop requiring complete replacement of the stovetop.
You can preview product brands and lines meeting these recommendations via our online store. Please refer to the instructions included with your stove or contact the manufacturer of your stove for further guidelines regarding the best product choices to use with your cooktop.