As a manufacturer, we do not test our products for heat resistance. Our folding tables will comfortably handle some heat, such as a crock pot, as long as the heating element does not come in contact with the resin. Ultimately, the surface is a plastic and if the heat source is hot enough or left in direct contact with the surface for long enough, it will melt. It would be advisable to use a barrier such as a pot holder or towel when applicable.