Don't take off the filter when the health pot is boiling water. There is an air passage at the back of the pot, which is directly connected with the temperature control element. When the water boils, the net will block it, and the pressure in the pot will make it easier for steam to reach the temperature control element directly through the air passage, and stop heating at the lower part of the handle in time, which will prolong the automatic power-off time after the water boils.