In fact, high temperature disinfection requires high enough temperature and long enough time. Unless the dinner set is put into boiling water and boiled for tens of minutes, the sterilization effect we want can be achieved. Furthermore. It takes only a few seconds to ten seconds for ordinary people to iron dinner set, and the effect time is far from enough. Therefore, hot water cannot kill these bacteria and viruses. At most, it is the residual detergent, disinfectant and dust after cleaning.