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What are sweet potato vermicelli like?
First, the sweet potato vermicelli is translucent and brown in color.

Second, sweet potato vermicelli, commonly known as sweet potato vermicelli, also known as sweet potato vermicelli and vermicelli, is a traditional famous product with a history of more than 400 years. Sweet potato vermicelli is not rotten after long cooking, fragrant and delicious, and has various eating methods. It is a kind of food made from sweet potato and starch in sweet potato.

Sweet potato vermicelli is a kind of easy-going food, which can be matched with many foods and cooked in many ways to make a variety of dishes.

The color difference between sweet potato vermicelli and vermicelli is still obvious. According to experience, the yellow and blue vermicelli of pure sweet potato are all true, and there is also a kind of white and transparent vermicelli that is true, not only the black vermicelli is true as everyone thinks, which is actually a misunderstanding. The old master who makes handmade vermicelli said that this has a lot to do with the quality of sweet potato vermicelli. In the process of making sweet potatoes into starch, there will be something called "dried powder", which floats on the sweet potato starch and is not easy to clean. If there is a large amount of "dried powder" in sweet potato starch, the color of the vermicelli will be black. Old people who make vermicelli in rural areas are reluctant to throw away the "dried vermicelli" and deliberately mix it in. Over time, people think that only black vermicelli is true. Sweet potato vermicelli is wide and thin, and it is nutritious. Like sweet potato, it is an anti-cancer food. Suitable for boiling, frying and cold salad.

The reason why the color of sweet potato vermicelli is brown is very simple. For example, fresh sweet potatoes, apples, etc. are white at first after being scratched with a knife, and then oxidized to brown after being put in the air for a while. The color change of sweet potato vermicelli is also the reason. Under normal circumstances, the vermicelli will gradually turn white after being cooked, just like the discolored apple is bleached with boiling water and its color is restored.

Generally, sweet potato vermicelli should be cooked in boiling water 15 minutes to 30 minutes, and the thicker vermicelli can be eaten for 40 minutes. If you continue to cook, the water absorption of the vermicelli will increase, and the taste strength will decrease, resulting in local swelling and breaking, and the water-soluble solids will increase. If you continue to cook, the vermicelli will become small short knots, and eventually there will be a slight soup paste phenomenon due to the high temperature melting of soluble starch.

Third, the nutritional value of sweet potato vermicelli:

1, vermicelli is rich in carbohydrates, dietary fiber, protein, nicotinic acid and minerals such as calcium, magnesium, iron, potassium, phosphorus and sodium;

2, vermicelli has a good flavor, it can absorb the taste of all kinds of delicious soup, and the vermicelli itself is soft and smooth, which is more refreshing and pleasant. Real green vermicelli has most of the health functions of sweet potato.

Four, sweet potato, scientific name: sweet potato, also known as sweet potato, red taro, sweet potato, sweet potato, sweet potato, sweet potato (north), sweet potato (in many places), sweet potato, sweet potato, sweet potato, Zhu potato, pillow potato, Fange, white potato, fennel sweet potato, sweet potato.

Sweet potato belongs to the order of tubular flowers, panicum miliaceum, Convolvulaceae, with a length of more than 2 meters, lying on the ground obliquely, the leaves are usually broadly ovoid, 4-13cm long and 3-13cm wide, the corolla is pink, white, lavender or purple, bell-shaped or funnel-shaped, 3-4cm long, and the capsule is ovoid or oblate.

Sweet potato is rich in protein, starch, pectin, cellulose, amino acids, vitamins and various minerals, and has the reputation of "longevity food". The sugar content reached 15%-20%. It has anticancer, heart protection, emphysema prevention, diabetes, weight loss and other effects. In the Ming Dynasty, Li Shizhen's Compendium of Materia Medica recorded that "sweet potato can tonify deficiency, strengthen spleen and stimulate appetite, and strengthen kidney yin", and said that people in the sea eat long. Chinese medicine regards sweet potato as a good medicine.