How to determine the freeze drying end time of freeze dryer

Vacuum freeze dryer is suitable for drying high-grade raw materials, Chinese herbal medicines, biological materials, wild vegetables, dehydrated vegetables, fruits, food, chemicals, pharmaceutical intermediates and other materials.

During the use of the freeze dryer, can the freeze drying end time be determined by the material temperature? The answer is no. The appropriate freeze drying time needs to be determined based on experience, because the material temperature only represents the probe sensor temperature, which may be different from the actual situation. However, the material temperature can be used as an auxiliary judgment condition. After all, the material temperature will only begin to rise slowly when the sublimation rate of water in the material is not enough to offset the increase in ambient temperature.

Vacuum freeze drying machine is suitable for scientific research in life science, medicine, food science, aquatic science, biochemistry, environmental science, archeology, etc., and can meet the needs of freeze-drying technology exploration and application.