1. The table should be in tidy and the material must be heatproof 2. When it’s working, should be careful to keep away from getting burned 3. Pay attention to the heating element, high temperature will damage it. 4. Do not use heating plate near the combustible and flammable objects. 5. Do not move or touch the machine until it’s power off and cooling down . 6. This machine is high temperature electronic product. In case of any accident happen, remember to cut off the power while not use it. 7. Do not use the machine in high temperature (up to 300 degree) for a long time. Usually, no more than 8h. http://www.sparepartstop.com