Remove the rotten leaves and roots from the fresh Artemisia capillaris, leaving only the stems and leaves for use. Rinse repeatedly with clear water to remove sediment and impurities, and control water for later use. Put the cleaned stems and leaves of Artemisia capillaris into a container, sprinkle with a little salt and monosodium glutamate, and stir evenly by hand. Sprinkle dry flour several times and gently stir with chopsticks while sprinkling. Let the flour fully and evenly adhere to the stems and leaves of Artemisia capillaris. Those who like to evaporate can mix more flour and customize it according to their preferences.