Flattop grills , as the name implies , is typically a flat piece of steel .
Some are slightly convex or crowned in the center which allows excess juices or grease to flow to the outside to be captured and disposed of .
Flattop grills , as the name implies , is typically a flat piece of steel but some are slightly convex or crowned in the center which allows excess juices or grease to flow to the outside to be captured and disposed of .