Each manufacturer has attached an instruction manual to the product, just follow the instructions. Here we emphasize the steps of using a baby bottle sterilizer. Use a bottle cleaner and a bottle brush to clean the remaining milk in the bottle. It is recommended to use a sponge bottle brush to clean the bottle compared to other materials. (It is recommended to replace the sponge bottle brush once a month). Put the cleaned baby bottle into the sterilizer, set the time and temperature, and after the baby bottle is sterilized, take out the baby bottle with a bottle holder and let it air dry for later use.