The reasons for adding cassava flour into sweet potato vermicelli are as follows:

1. Cassava starch can improve the softness and hardness, but it should not be added too much, otherwise the vermicelli will be dark and dark.

2. Alum is not allowed to be used in the production and processing of starch products such as vermicelli, vermicelli, vermicelli, face lift, vermicelli, bean jelly, etc., and phosphate, preservative, etc. cannot be used beyond the scope, and non-edible substances such as borax cannot be added. Otherwise, it is an abuse of food additives beyond the scope and a criminal act in violation of Article 46 of the Food Safety Law.

3. In the next step, the starch products production and processing factory should abandon the alum thinking, and should not use food additives beyond the scope such as phosphate. Under the legal premise, it should change the production process and use the food additive energy source with QS certificate to produce real alum-free products.

Brief introduction of sweet potato powder:

Sweet potato powder is a home-cooked dish made of sweet potatoes. Sweet potato powder is a local specialty snack in Guangxi, Shaanxi, Hunan, Fujian, Sichuan and Guizhou. Gray slender strip, crystal clear, similar to vermicelli.

sweet potato, also known as sweet potato, sweet potato and sweet potato. Every 5 grams of sweet potato can produce about 635 kilocalories of heat energy, including 11.5 grams of protein, 14.5 grams of sugar, 1 gram of fat, 1 mg of phosphorus, 9 mg of calcium, 2 grams of iron, .5 mg of carotene, and other vitamins B1, B2 and C, niacin and linoleic acid. The contents of vitamin B1 and B2 are 6 times and 3 times higher than those of rice, respectively.

Especially sweet potatoes are rich in lysine, while rice and flour are just short of lysine. Sweet potato is crisp and sweet when eaten raw, which can replace fruit; Cooked food is sweet and soft, eaten in the mouth and sweet in the heart. It can be used as both a staple food and a vegetable. There are many ways to eat steamed, boiled, fried, fried and fried, and once cooked skillfully, it can also become a delicacy on the table.