Food raw material detection device and detection method

The invention belongs to the technical field of food detection, and particularly relates to a food raw material detection device and method.The food raw material detection device comprises a bottom plate, a transverse plate is fixedly connected to the upper end of the bottom plate through a vertical plate, a vertical cylinder is fixedly connected to the lower end of the transverse plate, and a detection sensor is slidably connected to the inner side of the vertical cylinder in a sealed mode; a first spring is fixedly connected between the upper end of the piston and the transverse plate, a limiting ring fixedly connected with the vertical cylinder is arranged on the lower side of the piston, a first guide hole penetrating inside and outside is formed in the side face of the vertical cylinder, and a first one-way valve is assembled on the inner side of the first guide hole. The detection device is used for detecting the PH value of liquid food raw materials, the probe can be automatically washed and cleaned af