By adding a fan on the basis of steam sterilization, the heating medium and the packaged food are in direct contact and forced convection, and the presence of air in the sterilizer is allowed. The pressure can be controlled independently of the temperature. The sterilizer can set multiple stages according to different products of different packages.

The role of a steam sterilizer is to eliminate or kill harmful microorganisms, such as bacteria, viruses, and spores, from various items, equipment, or materials through the application of high temperature and pressure using steam. This process, known as sterilization, ensures that the sterilized items are free from infectious agents, making them safe for use in medical, laboratory, or other critical applications. Steam sterilization is a highly effective method for infection control and ensures the safety and integrity of the sterilized items