Decoction is an important part of traditional Chinese medicine, and it involves many subtleties. To ensure proper decoction of Chinese herbal medicine and prevent liquid overflow, here are some practical suggestions.
Before decoction, soak the Chinese herbs for about 30 minutes, then bring to a rapid boil over high heat. Reduce to low heat to maintain a simmer, which helps control liquid overflow and prevents rapid evaporation. Stir the liquid appropriately during decoction to prevent overflow. If signs of overflow are observed, gently stir and reduce heat. Adjust the decoction time based on the amount of herbs, with the water level typically about an inch above the herbs. Decoct until half a cup of liquid remains.
Regarding the water used for decoction, it is recommended to boil the water first and then cool it before use to reduce residual chlorine and potential mineral impacts on the efficacy of the herbs.
Many people mistakenly believe that longer decoction time results in a stronger efficacy, but this is not true. Once the concentration of active ingredients in the liquid and herbs reaches a balance, continued decoction is not only ineffective but may also lead to evaporation or destruction of active ingredients, affecting efficacy. Therefore, follow medical advice to control the decoction time.
Whether to cover the pot during decoction depends on the nature of the herbs. In most cases, covering the pot helps in the full release of active ingredients, especially for herbs with volatile components like peppermint and patchouli. However, for herbs with large volume and loose texture, it is not advisable to cover the pot; instead, stir frequently to ensure even decoction.
To avoid pot scorching during decoction, ensure the pot is clean and choose a pot with uniform heat conduction. Always keep the pot covered during decoction. Mastering the decoction method, timely stirring, and maintaining sufficient water are key measures to avoid scorching.
The choice of suitable decoction utensils is equally important. Traditionally, clay pots are preferred due to their stable chemical properties and uniform heat conduction. Adjust the amount of water based on the nature of the herbs, usually within 5-10 times the amount of herbs to ensure thorough decoction.
In conclusion, correct decoction methods are crucial for maximizing the therapeutic effects of Chinese herbal medicine, including proper preparation, heat control, decision on covering the pot, and techniques to avoid scorching. Each step requires careful operation.
