1. Selection of decocting device The quality of traditional Chinese medicine decoction has a close relationship with the selected decocting device. It is still better to use casserole, because the material of the casserole is stable and will not chemically react with the drug components, and the heat transfer is evenly moderated. This is one of the reasons that has been used since ancient times. In addition, enamel pots, stainless steel pots and glass frying pans can be used. However, iron pots and copper pots cannot be used, mainly because the chemical nature of iron pots or copper pots is unstable. Oxidation. It can react with the chemical components contained in traditional Chinese medicines when decoction. For example, it can form iron citrate with enamel components to make the color of the liquid deepen. The flavonoids can form difficult-to-capacity polymers. It can form salts with organic acids. These will affect the quality of the decoction, which is directly related to the clinical efficacy of traditional Chinese medicine decoction.
2. The amount of water added to the decocting medicine is also very important. The amount of water directly affects the quality of the decoction. If the water is added less, it will cause the medicine to be boiled and the active ingredient is not completely leached. The decoction of the liquid is too much, the patient is very inconvenient to take the medicine. Because of its different texture, the Chinese herbal medicine has a large difference in water absorption. Generally, the amount of water added is controlled at 5-10 times. The same weight of the drug is loose. The volume is large, the amount of water absorption is naturally much. The texture is solid and its volume is small, and the amount of water absorption is small. Therefore, boiling flowers, leaves, whole grass drugs, adding more water. Decoction minerals, shellfish drugs The amount of water added is less. According to the traditional method of adding water, the medicine is put into the pot, and the amount of water added to the decocted water is 3-5 cm above the surface of the medicine, and the amount of water added for the second time exceeds the surface of the medicine. 3 cm is the standard. This method of adding water is simple and easy to master.
Three. Attention in the decocting
1. Soaking before decocting: The medicine must be soaked before boiling. This is because the traditional Chinese medicines derived from plants are mostly dry products. The medicinal materials can be softened by soaking with water, and the tissue cells are expanded to restore their natural state. It is easy to leaching out the active ingredients during the medicine. Generally, the flowers, leaves and stems are used for soaking for 1-1.5 hours. The soaking time of roots, seeds, rhizomes and fruits is 2-3 hours.
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