1, not needed. Because Sophora japonica has been blanched before freezing. Take out the frozen Flos Sophorae Immaturus, put the Flos Sophorae Immaturus into a stainless steel basin, then take another basin, pour in hot water, and put the stainless steel basin into a hot water basin. You can also take out the frozen Sophora japonica and thaw it in the microwave oven.

2. Sophora japonica, also known as Sophora japonica, refers to flowers and buds of leguminous plants in a broad sense, but generally open flowers are called Sophora japonica, also known as Sophora japonica, and buds are called Sophora japonica. It is often planted near houses and roadsides, and is widely cultivated in China, mainly distributed in the north, mainly in the Loess Plateau and the North China Plain. It usually blooms in April and May every year, and the flowering period is about 10- 15 days.