1. Separate the upper and lower parts of the filter element. While washing the upper filter element (ceramic) with clean tap water, you can brush the surface of the filter element with a clean new toothbrush without brushing your teeth.

2. When the upper filter element is filled with about half a pot of tap water, shake the filter element up and down for several times, and pour off the remaining water, which can be repeated several times to make the micropores of the filter element unblocked, and the lower filter element is filled with tap water, so that the lower filter element is shaken with the palm of your hand, and the filter material is cleaned with tap water. Repeat several times until the tap water flowing from the lower filter element is clear.

3. It is no problem to clean the heating/cooling room of food and drink, put clean water in it, and then rinse it several times.