Yes. When the vermicelli is burned with fire, it will expand rapidly and turn white first, making a crackling sound. After burning, only black charcoal ash will remain, which is relatively pure.
The surface color of ordinary vermicelli is not correct, even too glamorous and unnatural. The more it is cooked, the darker it becomes. Theoretically, there is a problem with such vermicelli. The reason why sweet potato vermicelli is brown in color is It’s very simple. For example: fresh sweet potatoes, apples, etc. are white at first after being scratched with a knife, and then oxidize and turn brown after being left in the air for a while. This is also the reason for the color change of sweet potato vermicelli. Normally, the vermicelli will turn brown after being cooked. Gradually turn white, just like a discolored apple that is rinsed with boiling water and regains its color. Vermicelli that does not change color after being cooked for 2 hours may be a safety hazard.
Vermicelli is a special traditional food made from sweet potatoes, potatoes, etc., which are processed into thin strips and dried through grinding and precipitation. Each region in China has its own unique production process. The finished vermicelli is off-white, yellow or tan. According to the shape, it can be divided into round vermicelli, thin vermicelli and wide vermicelli.
The vermicelli is rich in carbohydrates, dietary fiber, protein, niacin and minerals such as calcium, magnesium, iron, potassium, phosphorus, sodium and other minerals; the vermicelli has good flavor and can absorb various The taste of the delicious soup, coupled with the softness and tenderness of the vermicelli itself, makes it even more refreshing and pleasant.
Extended information:
Eating effects
1. Supplementary nutrition: Vermicelli is rich in carbohydrates, fiber, protein, niacin and various trace elements. It can supplement the nutrients needed by the human body.
2. Weight loss: Treating vermicelli as a meal can reduce calories while ensuring daily carbohydrate intake, thereby achieving the effect of weight loss.
Reference materials:
Baidu Encyclopedia-Vermicelli