2. You can choose sweet potato starch, mung bean starch, kudzu root starch, fern root starch and lotus root starch instead of potato starch and corn starch. Add a proper amount of water to dilute the starch into a slurry, then pour it into a pot and boil it with high fire, and heat it with low fire. At this time, the pulp in the pot is constantly stirred with a wooden shovel to prevent it from sticking to the pot. When the slurry becomes sticky bit by bit, it can be poured into the container.