Sophora alopecuroides powder itself has bitter taste. Sweet bean powder bitter bean powder itself has a bitter taste. Bitter bean powder is a kind of spice, also called fragrant bean powder. Sophora alopecuroides powder is an extract from the cotyledons of leguminous plants, which is light yellow in color, oily and fragrant. Sophora alopecuroides powder is also a kind of medicinal plant, which has the effects of clearing heat, eliminating dampness and relieving pain.