To 50 kilograms of starch processing powder as an example. 150 grams of alum crushed into powder, placed in a basin, add 500 grams of warm water to dissolve the alum, and then add 500 grams of starch, 5 kilograms of warm water and mix well, blending into a thin milky paste. Pour the mixture into the starch that was diluted and soaked the day before and mix well. Alum do not add too little or too much, too little drying out of the powder skin lack of toughness and elasticity, eat up not sinewy; too much will lead to dry and brittle powder skin, easy to break, not conducive to packaging storage and transportation. On the surface, after 1 minute of hot blanching with a small spoon that can make about 50 to 100 grams of dried vermicelli per sheet, scoop up a spoonful of well-stirred starch milk, poured into the spinners, and then use the hand to positively turn or reverse the spinners, so that the starch milk in the spinners spread evenly, leaving no cracks, leakage holes. When the starch milk is heated from white to gray-white translucent, take out the spinners and put them in a basin of cold water to cool down, and when the starch milk is completely cold and cool, take it out and put it on a curtain of vermicelli made of straw strings.

@ When the cool skin er completely cool, the surface brush some oil or water, you can slowly peel off, will not stick!