The purpose of disinfection is to sterilize. The method of disinfecting the water in the pot is the same as the disinfection method of the bottle sterilizer. However, the use of hot water heating and disinfection will make the bottle of the bottle easy to deform. If the rubber and silicone nipple touch the metal of the pot, environmental hormones will occur, and the baby will use the bottle and nipple again to cause health hazards. The disinfection time is also not easily controlled by the bottle sterilizer.