What do you mean by three liters, two MINUS three?

Sansheng Erxiao Sanxiao is a traditional preparation method of traditional Chinese medicine, which refers to the purpose of extracting effective components from medicinal materials and improving drug efficacy through specific decocting steps.

Three liters means that in the process of decocting, the medicinal materials are decocted three times. After each decoction, pour the juice of the medicinal materials into clean gauze, and tie the gauze tightly to make the juice flow out, so as to better extract the components in the medicinal materials. "Two removal" means that the residue needs to be removed twice during the decocting process. After each slag removal, the medicinal materials need to be added to water again to continue decocting. "Three cuts" means that three cuts are needed in the process of decocting medicine.

The way to reduce the weight is to pour the medicine juice into the pot, add an appropriate amount of water, heat it again until it boils, and then turn to low heat for decoction. This can make the ingredients in herbs more concentrated. It is a traditional preparation method of traditional Chinese medicine and has certain scientific value. However, it should be noted that different herbs need different decocting methods and should be operated according to the doctor's instructions.

Characteristics of three liters, two elimination and three reduction:

1, full extraction and high efficiency.

Through "three liters" decoction for many times, the medicinal materials are fully soaked and extracted in water, which is conducive to better extracting the effective components in the medicinal materials, thus improving the curative effect.

2, slag removal is pure, and the liquid medicine is pure

Removing residues twice can remove residues and impurities in the decoction, make the decoction more pure, reduce bad components and odor in the decoction, and ensure the quality and taste of the decoction.

3. Concentrated ingredients improve efficacy.

Thirdly, the concentration step of subtraction makes the ingredients in herbs more concentrated and improves the curative effect. The way to reduce it is to pour the medicine juice into the pot, add a proper amount of water, heat it again until it boils, and then turn to low fire for decoction, so that the ingredients in the herbs are more concentrated.

4. The operation is simple and easy.

The method of "three liters, two elimination and three reduction" is simple and easy to operate, and does not need complicated equipment and instruments, so it can be operated step by step. This is also one of the reasons for its long history and wide application.

5. Wide application range

The method of "three liters, two elimination and three reduction" is suitable for the decoction of various medicinal materials. It is a traditional Chinese medicine preparation method and widely used in Chinese medicine decoction. Different herbs need different decocting methods and should be operated under the guidance of a doctor.