Imitating the principle of natural air drying in winter, the temperature in the drying room is controlled between 5-40 ℃ through the operation of a compressor. Forced ventilation is applied to the surface of the material to cool it down and remove moisture. The material is then condensed into water by a condensing device and discharged outdoors, achieving the purpose of air drying. At present, cold air drying equipment is relatively mature and widely used in many products. It has achieved year-round industrial, large-scale, and continuous production, and product quality can be guaranteed. The cold air drying method is similar to the traditional winter sun drying method, but it can greatly shorten the drying cycle and ensure that traditional flavored air dried products can be dried all year round.
