After the sterilization pot is used for a period of time, the stainless steel electric heating plate will have scale. Excessive scale will affect the normal operation of the disinfection pot. It will automatically shut down after a few minutes of work, and the water in the electric heating plate has not completely evaporated. Method to remove scale: Pour rice vinegar or citric acid into the electric heating plate. The sterilizer does not need to be energized. Soak for about half an hour. The scale will be eliminated by itself. If there is still scale, wipe it with a scouring pad or replace the rice vinegar. To reduce scale, it is recommended to use pure water. Do not immerse the whole machine in water for cleaning.