Customer Service

CW by Corningware® Use & Care

We at World Kitchen are very safety conscious. We design and manufacture consumer products with the safety of you, our valued consumer foremost in our minds. You must exercise an appropriate degree of care when using any stoneware product. Especially when cooking food at high temperatures. For your safety, you must adhere to the warnings and use instructions outlined below.


CorningWare® stoneware bakeware can be used for baking, serving and reheating food. Some stoneware bakeware can be used in microwave, convection and pre-heated conventional oven. Some items may not be appropriate for specific uses. Review information on bottom of items prior to use.


Wash by hand or in automatic dishwasher. Load items to avoid bumping against other items during cycle. To remove gray or rust marks, clean with a non-abrasive cleanser. If scouring is necessary, use only plastic or nylon cleaning pads with non-abrasive cleansers. Do not allow stoneware bakeware to soak/stand in water for an extended period of time. Applied heat after soaking may cause crazing. Should a question develop in the USA, contact the World Kitchen office at 1-800-999-3436.


All CorningWare® stoneware bakeware items are breakable. Failure to follow these instructions my result in personal injury or property damage.

• Do not use on stovetop, under a broiler/griller, under a microwave browning element, in a toaster oven, on or near any other direct heating source such as range heat vents, open flames, etc.
• Avoid sudden temperature changes. Do not add liquid to a hot stoneware item, place a hot stoneware item on a wet surface, or handle with a wet or cold cloth.
• Handle hot stoneware items with a dry cloth or potholder.
• Do not use to microwave popcorn or to hold or support popcorn bags, microwave convenience foods with special browning wrappers, etc. Some convenience food packaging is designed to heat rapidly in a microwave oven and may cause breakage.
• Do not heat an empty vessel or a small amount of food in a microwave oven. Bakeware may become too hot to handle, crack or break.
• Do not use or repair any item that is chipped, cracked or severely scratched.
• Do not abuse by dropping or hitting against a hard object.
• Do not use abrasive cleaners, scouring pads, or any object that will scratch stoneware items. Place on a dry placemat or tablecloth to avoid scratching surfaces. The bottom of stoneware items may be rough.

Do not use any stoneware items mistreated in this manner.