That is virtual fire, and the method needs to be changed to adjust it. There are many kinds of bitter vegetables, among which purple bitter vegetables are the most beneficial to people and have good curative effects on cholecystitis and gastritis. It is generally harvested in early spring, washed, and used fresh or sun-dried. It is named after its purple flowers, which grow along ditches and hillsides and are scattered and concentrated. Different picking times have different medicinal effects. Only by digging at the right time can the medicinal efficacy be guaranteed. Used to satisfy hunger in the 1950s and 1960s, the origin of sophora purpurea is located in Guannan, northeastern Jiangsu Province. The growth conditions of sophora purpurea are demanding and must meet the elements of sufficient light, mild climate, and abundant rainfall.