The coating material of the liner of Liren electric hot pot is mainly PTFE, which is often called PTFE. Teflon coating will only decompose at a high temperature of 260 degrees Celsius, and the highest temperature of the wok is about 200 degrees Celsius, so even if the coating decomposes, it will not produce toxic substances and will not bring harm to people's health. Therefore, the coating of Liren electric hot pot is safe.