Sweet potato vermicelli is something that many people often eat in winter, especially the hot pot tastes very good, and everyone can often eat it in mala Tang or hot and sour powder. Sweet potato vermicelli tastes very strong, and it is very resistant to cooking, and it is more nutritious than ordinary flour. However, the production cost of authentic sweet potato vermicelli is relatively high. If you buy pure sweet potato flour yourself, it will cost about 5 yuan a catty, and pure sweet potato vermicelli will cost more than 10 yuan a catty. Those people in the supermarket dare to sell two pieces of sweet potato vermicelli because these vermicelli are not pure at all, but are processed with cheap starch in the factory.

Authentic sweet potato vermicelli is made of sweet potato, and the cost is very high, so it needs to be sold for more than ten yuan a catty. The reason why the sweet potato flour in the supermarket dares to sell two pieces is because all these vermicelli are produced by big factories. These factories must be made by machines, so it replaces labor and saves a lot of labor costs, but it doesn't save much money. Because in the process of making sweet potato vermicelli, even if it is made by machine, the crushing process is only saved in the middle, and other cleaning and drying are still done manually.

Those vermicelli in the supermarket are not real sweet potato vermicelli at all, but a lot of cheap starch is added, which is very cheap to sell, so the cost is relatively low if it is added to sweet potato powder to make vermicelli. Even some factories will add some industrial gelatin to the vermicelli when making it. This kind of food is harmful to the health after eating, so everyone usually sees vermicelli at two or three yuan a catty in the supermarket, and it is best not to buy it.

If you want to identify whether sweet potato vermicelli is true or not, there is actually a method. The first thing is to look at the color. Generally, the color of pure sweet potato vermicelli is somewhat yellowish or yellowish brown, and some are even translucent, but some bleach will be added to the fake sweet potato vermicelli. Another way is to smell. Generally, even if the sweet potato vermicelli is made into vermicelli, it will still smell like sweet potato, but those fake vermicelli will have the smell of dye or other smells.