Hepatitis B virus cannot be inactivated in boiling water for 1 minute. Hepatitis B virus is sterilized in boiling water by using high temperatures to destroy the components of the virus, thereby inactivating it and blocking the source of infection. It is necessary to continue in boiling water for about 3 to 5 minutes to inactivate the hepatitis B virus . The activity of the hepatitis B virus is greatly affected by temperature and humidity in the external environment. Under normal circumstances, heating at high temperatures can destroy the components of the hepatitis B virus, thus inactivating it and preventing its transmission. However, if the high-temperature heating time is too short, the destructive power of the hepatitis B virus is not enough, and the virus is not inactivated completely, there is still a possibility of disease transmission. Therefore, dishes, toothbrushes or other daily necessities used by hepatitis B patients must be thoroughly sterilized in daily life to prevent the spread of the virus.