Material selection and preparation: fresh bamboo stalks of pink and green bamboos and clean bamboos in 1-2-year-old Qiao Ben plants are selected as raw materials, moth-eaten, mottled, washed, sawed into small pieces and hammered.

Extraction of fresh bamboo juice: put the treated bamboo stalks into the extraction container at an angle of more than 0 degrees and less than 90 degrees, cover and seal, turn on direct steam, directly heat the fresh bamboo stalks, and at the same time open the valve of the liquid outlet pipe at the bottom of the extraction container, and the water discharged from the bamboo stalks will be discarded. When the discharged liquid is light green and the liquid temperature is 60-70 degrees, it will be collected in a container and heated to 1.5.