Spinning yam will stop when it is cold. According to the inquiry, the related information shows that: Drawn yam is a famous vegetarian dish, which is yellow, crisp, sweet and refreshing, and it is a kind of pressed beet, which was proposed by Xue, a bachelor of Hanlin in Qing Dynasty. Peel off the skin, cut into pieces, put oil in it, add rock sugar and water, and take it out of the pot, that is, there are filaments. The stretched yam will stretch when it is hot, but it will solidify when it is cold and cannot be stretched.