中药材大部分为植物类药材,具有在空气中得失水份的性质,在储存过程中如果药材的含水量超过了它的安全含水量,在一定的温度、湿度下就可能出现变色、变味、生霉、发热、变质的现象。由于中药材种类繁多,规格等级、药用部位及加工方法较复杂,即使是在相同的条件下储存,它们的安全含水量的差别也是很大的。在实践中可以看到含糖质较多的药材如党参、红枣,含水量高到15%或超过15%也可能不会出现问题;种籽类药材如莱菔籽,含水量在10%左右就存在着生霉发热的危险。又由于仓储部门的大部分库房条件较差,密封程度 Most of Chinese herbal medicines are botanicals, which have the property of losing or losing moisture in the air. If the water content of medicinal materials exceeds its safe water content during storage, discoloration and odors may occur under certain temperature and humidity, Moldy, fever, deterioration of the phenomenon. Due to the wide variety of Chinese herbal medicines, the level of specifications, the medicinal parts and the processing methods are complicated, the difference in their safe water content is large even when stored under the same conditions. In practice you can see more sugar-containing herbs such as Codonopsis, jujube, water content up to 15% or more than 15% may not be a problem; seed medicines such as Radix Seeds, water content of about 10% There is a danger of moldy fever. And because of the warehousing of most of the warehouse conditions are poor, the degree of sealing