The drying of Chinese herbal medicines is to put the picked fresh Chinese herbal medicines into the drying equipment, and gradually evaporate the water
in them through a certain heating method, so as to achieve the purpose of drying and keeping fresh. The following points should be paid attention to during the drying process:
1. Cleaning: Clean the picked Chinese herbal medicines first to remove sediment and impurities, and they cannot be dried directly.
2. Slicing: Properly cutting Chinese herbal medicines into small pieces can increase the drying speed.
3. Remove foam: For Chinese herbal medicines with strong foaming properties (such as wolfberry, etc.), they need to be soaked in water
before drying, so as to remove foam and dry more evenly.
4. Heating: Put the washed and dried Chinese medicinal materials into the drying equipment for heating treatment. Generally, hot air drying method and microwave drying method
are two commonly used drying methods. The hot air drying method is to dry the Chinese medicinal materials through the hot air of the heating furnace, while the microwave drying
method is to heat the Chinese medicinal materials themselves through microwave electromagnetic waves. of.
5. Control temperature and time: Control the heating temperature and time according to the characteristics of different Chinese herbal medicines to achieve the best drying effect.
After the above series of treatments, a large amount of water in the Chinese herbal medicine evaporates, thus cutting off the nutritional path for the growth of the Chinese herbal medicine,
avoiding the growth of bacteria, molds and other microorganisms, maintaining the nutritional content of the Chinese herbal medicine and extending its shelf life.
