Chinese herbal medicine is usually dried at low or high temperatures. For example, flowers such as chrysanthemum and honeysuckle are generally dried within the range of 40°C to 50°C. However, some herbs with higher moisture content, such as astragalus and angelica, may require higher temperatures, typically within the range of 60°C to 70°C for drying. The drying temperature for Chinese herbal medicine is generally between 60°C to 80°C, and specific temperature requirements may vary for different herbs.
During the drying process, it is important to maintain a constant temperature and avoid extremes of high or low temperatures. What happens if the drying temperature is too high? If the drying temperature is too high, the Chinese herbal medicine may become excessively dry, affecting its quality, and may even lead to issues such as discoloration, waxing, volatilization, and damage to components, resulting in a decrease in the medicinal effectiveness of the herbs. Additionally, excessively high drying temperature could lead to a decrease in the appearance quality of the herbs, such as peeling, wrinkling, or cracking. What problems arise from drying at too low of a temperature? If the drying temperature is too low, the herbs may not dry sufficiently, which can lead to the growth of mold and bacteria, causing a decline in quality and even possible spoilage of the herbs. Drying at a low temperature also increases the drying time and production costs.
How is the drying temperature controlled? The control of the drying temperature relies on professional equipment for drying Chinese herbal medicine, typically using electronic temperature control to automatically adjust temperature, humidity, and air flow, and to set drying parameters in stages and periods to ensure the quality of the herbs.
In summary, the drying temperature for Chinese herbal medicine is generally between 60°C and 80°C, and controlling the drying temperature is one of the important factors in ensuring the quality of the herbs. During the drying process, it is necessary to regularly check the condition of the herbs to ensure that they meet the required level of dryness. To ensure drying efficiency and stability, regular maintenance of the drying equipment is necessary.
Post time: Mar-26-2020