When making sweet potato starch, soak the sweet potato starch in water first and then crush it with your hands to prevent the sweet potato starch from forming hard lumps. Add a little water to the sweet potato starch and mix it in the pot at a ratio of 1:4 Add 1 jin of sweet potato flour and 4 jins of water in the proportion. After adding a small amount of salt to the pot, bring the water to a boil over high heat and stir continuously with chopsticks. When the sweet potato starch emits bubbles and turns oily blue, remove from the pot and place it in a container to cool.

1. When making sweet potato starch, soak the sweet potato starch in water first until it is fully soaked. After it is full of water, crush it with your hands to prevent the sweet potato The flour will form hard lumps, and then when the sweet potato flour has settled into clear water, pour out the noodles on top to prevent small insect eggs floating in the water, making it unhygienic to eat.

2. Add a little water to the sweet potato flour, and add 4 pounds of water to the pot in a ratio of 1:4, that is, 1 pound of sweet potato flour plus 4 pounds of water. After adding a small amount of salt to the pot, boil the water over high heat, then pour the soaked sweet potato starch into the pot while stirring with chopsticks, and stir continuously with chopsticks until the sweet potato starch in the pot emits bubbles and becomes After it turns green, remove from the pot and put it into a container to cool.