2. Mixing slurry: first mix the starch with cold water, and then add water one after another, mixed into a thin paste slurry, and according to the amount of starch per 100 kilograms, add alum 400 grams dissolved, transferred and into the slurry without grain block.
3. Hanging skin: the hot plate of processing powder skin, using white iron made of round, plate diameter of about 40 centimeters, 10 centimeters high. Fuck the skin, the first hot plate in the skin rubbed a thin and even layer of vegetable oil, the purpose is to make the ripe skin easy to lift. After rubbing the oil, the hot plate is placed in a pot of boiling water and floated on the water so that it can be scalded. Then pour a scoop of batter in the hot plate, immediately swing the rotating iron plate, so that the batter spread evenly, at this time to cover the lid of the pot, to wait a few moments when the surface of the powder skin is dry, no moisture, you can take out of the hot plate in the surface of the cold tank of water to rotate, so that it cools down that is peeled off a powder skin, and so on, the requirements of the thinnest the better.
4. Drying: After the disk, the skin is spread on the bamboo curtain to dry. Drying preferably choose sunny and breezy weather, dry is better.