When making vermicelli or vermicelli, don't wait for the water to boil. When there are small bubbles at the bottom of the pot, dry noodles or dried noodles, then stir a few times and cover the pot. After the pot is boiled, it is not advisable to cook it with strong fire. Because dried noodles and dried noodles are very dry, the water is quickly pushed away when cooked with strong fire, and the water temperature is high, and a layer of mucosa is immediately formed on the surface of noodles, so that water can not be soaked well and heat can not be conducted. Therefore, it is advisable to cook slowly with medium fire, and add appropriate amount of cold water while boiling. When the water boils, the noodles will soon be cooked. In this way, the heat slowly penetrates into the noodles, and the noodles are cooked quickly, and the noodles are soft and clear.
If the dried noodles are dried after the water is boiled, the noodles will roll up and down in the boiling pot and rub against each other, and the mucous membrane on the surface will be washed away, which will gelatinize the noodle soup and increase its concentration, so that the water permeability will become worse, and the cooked noodles will have a hard heart.