GrillGrates are the No. 1 ranked barbecue grill surface in America! This technology has been used to create the SearNSizzle Grate for Ninja Food is. Made in the USA from hard anodised aluminium which will never rust, they have patented raised rails with a flat base plate. It is this design that amplifies the heat for perfect searing whilst drippings are vaporised in the valleys adding flavour and moisture to the food. The SearNSizzle Grate is also reversible. Used with the rails up for searing and rails down for a flat griddle surface.Through use and over time the Grate will season, enhancing the non-stick properties.The grate can be used at various levels, depending on the rack or accessories you have, however, the rails should be a minimum of 1.75 inch below the top of the cooking pot to keep food from coming into contact with the heat shield.You can employ different Ninja settings