Boiling Herba Houttuyniae aerial parts in water for 20 minutes or one hour produced comparable yields (P = 1.000). For Herba Polygonis Hydropiperis, Folium Murraya Koenigii and Cortex Magnoliae Officinalis, a shorter boiling time of 20 minutes was shown to be comparable to a boiling time of 60 minutes (P = 0.061, 0.053 and 0.798 respectively). While results from blending/maceration varied, this