1. When collecting Sophora japonica, select Sophora japonica which has been opened but not completely opened. The taste of Sophora japonica tea made from completely open Sophora japonica flowers is weak, so it is a key step to collect Sophora japonica flowers that have been opened but not completely opened.

2. Clean the collected Sophora japonica tea, then put it in a boiling water pot for about 10 minute, and then take it out to control the moisture.

3. After boiling Sophora japonica in water to dry, dry it in a ventilated and dry place, and avoid drying it in a windy place.

4. Dry Sophora japonica tea is fried in an iron pan with slow fire. Stir-fried, air-cooled, bottled and preserved.

5. The fried Sophora japonica tea is best sealed and preserved, so it is not easy to get insects. When it is opened for regular drinking, it should be kept in a clean and dry container.

6. You can take Sophora japonica tea directly with boiling water, or mix it with other ingredients when soaking in water.