The hepatitis B virus can normally survive on dishes for 6 months, where the temperature of the environment and the degree of rinsing of the dishes are important factors that affect the survival of the hepatitis B virus. The temperature of the environment is the primary factor that affects the hepatitis B virus. At room temperature, 30℃-36℃, the survival time of hepatitis B virus is about 6 months; above 37℃, the survival time of hepatitis B virus is 1 week; over 100℃, hepatitis B virus loses its infectiousness. In addition, the degree of rinsing of dishes is also an important factor. High-temperature disinfection is generally effective in reducing the survival rate of hepatitis B virus, or boiling water or disinfecting with chlorine-containing disinfectants can play a better role in killing germs. Dishes need to be replaced at the right time, especially communal dishes that need to be disinfected and exposed to the sun, and ventilated frequently to avoid the growth of bacteria.