The food freeze-dryer control system is a system used to manage and monitor the freeze-drying process of food. It is responsible for monitoring and controlling various parameters, including temperature, pressure, and humidity, to ensure the quality and stability of the food throughout the entire freeze-drying process. The primary goal of this system is to precisely control and maintain the necessary environmental conditions to achieve the freeze-drying and preservation of food, thereby preserving its quality and nutritional value.