How can warpage be avoided?Īlways use all available burners - Using just one or two burners to heat your Flat Top with can cause it to warp or buckle. Once the Flat Top has been heated and cooled multiple times the natural stretching and shrinking that occurs when the metal is heated will even out across the surface of the Flat Top, improving the overall flatness when cooking. This "bowing" will occur most often during the first few uses. Once the metal cools it will return to its original shape. There is a small bend in the metal on the front lip designed to reinforce the Flat Top against this, but it's physically impossible to heat metal without it expanding and curving to a small degree. The amount may vary depending on the type and style of the stove but will not affect the performance of the Flat Top. This can be seen as a slight curve across the width of the front of the Flat Top. It's perfectly normal for there to be a small amount of warpage on the Flat Top when cooking, especially at higher temperatures. This difference in temperature can be caused by incorrect settings on the burners of a stove, the actual layout of the burners on a particular model of stove, or extreme temperature differences that can be caused by putting frozen food on the hot metal when cooking. ![]() On a large piece of metal like the Flat Top, if some portion of the surface has a different temperature than the surrounding metal it will push against the cooler region as it expands and as a result the metal can push down or up causing deformation or "warpage". It's a natural property of metals that they will expand in all directions when heated.
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