Bon Chef sandstone charger plates have an aluminum body that is coated with a china like glaze that makes it look like elegant china. Sandstone is able to safely hold temperatures from a minimum of -20 degree F to a maximum temp of 185 degree F, and retains cold better than melamine or china. NSF certified, sandstone chargers add an upscale look to dining tables while providing a break-resistant, durable base for your finest food presentations. Follow Bon Chef cleaning instructions to preserve the unique sandstone coating.