It is crucial that the griddle/electric palette be kept at no more than 220 degrees Fahrenheit. A griddle thermometer will give you an accurate reading, as often the controls on a griddle are off by several degrees. Always start lower, and slowly raise the temperature if your wax is not melting. You can tell if it is too hot if the wax is smoking – sending up a visible cloud of smoke into the air. If this happens, immediately turn the griddle off, and open windows/doors.