Bagged potato powder is a little yellow and beige, as long as the cooked color is transparent; Potato flour is a famous traditional snack. Originated from the court of Ming dynasty, it was introduced to the people after the death of Ming dynasty, and won the praise of the world because of its unique taste. It is said that the chefs of the Ming Dynasty chose potato flour, thickening ingredients, nutritious noodles, boiled water leaking, air-dried in cold water bath, and finally made potato flour, a new kind of pasta. According to legend, for forty years in Wanli, all the imperial doctors in the palace could not recover, so they had to be advised to nourish with diet therapy. Inspired by the famous Guilin rice noodles in his hometown, the second-class chef selected potatoes to make flour, thickened the ingredients to make them fragrant, dried them in cold water bath, and finally made a new pasta. After cooking, the potato flour is bright and soft.