Breeding of 1 sweet potato. When selecting sweet potatoes, it is best to have a smooth surface that has not been eroded by pests. Be careful not to have green heads, and the size of sweet potatoes should be moderate, not too big.
2. Wash and crush. Wash the selected sweet potatoes one by one, and pay attention to cutting off both ends and the roots on the surface. Then grinding with a grinder, and then grinding into slurry. When beating, you can add the following water from time to time. Remember to grind as much as possible.
3 filter. Use 2-5 feet of slurry hanging cloth as filter bag to filter the slurry twice. The slurry is thinner for the first time and thicker for the second time. Then let the filtered slurry stand for two days, and then pour out the supernatant. Then add 1/3 of the original water quantity, stir, filter and stand.
4 exposure. When the slurry is completely clear, pour out the supernatant, take out the lower starch and knead it into dough, and expose it to the sun. After the water evaporates, cut the dough into several parts and continue to expose it to the sun.
5 dozen pastes. Stir with cold water with 25 grams of alum per 500 grams of starch, then put it in a pot to boil, and then mix it with stirring to make a paste.
6 wire leakage and cooling. Prepare two pots before silk leakage, and the hole of the colander is larger than that of the regular vermicelli colander. Heat the beaten paste and stir it at the water's edge, paying attention to mixing it evenly. As soon as you catch it, it will fall naturally, and it will not break, and it can leak silk. The paste flows out through the hole of the colander, gradually becomes thinner and finally becomes vermicelli. We can also complete this process with the help of a pulverizer. When the vermicelli completely sinks into the pot and then comes out of the water, it can be put into a cold water tank for cooling. Arrange the vermicelli by hand, dry it indoors until it is completely cool, and then take it out to dry.
7 fuck. When the vermicelli is completely dried, the prepared packaging bag can be packaged and stored.