Walking in the street, there are stoves selling baked sweet potatoes everywhere. Although some people say it is unsanitary, they can't resist the temptation of appetite. So, baked sweet potatoes are unsanitary? What are the advantages and disadvantages of baking sweet potatoes? Roasted sweet potato is unsanitary

It is absolutely unsanitary, and it seems that if you eat too much, it will cause cancer. Besides, if you eat too much, you are not afraid of getting fat.

According to the information provided by a vendor, it was learned that all the ovens used in roasted sweet potatoes were bought at some waste collection stations, and most of them were converted from large iron drums. The reporter observed that some of the iron drums of the ovens were also marked with "dry cleaning agent", and the handwriting was very clear. A middle-aged man surnamed Zhao said: "You can buy one such iron drum for 7 to 8 yuan, and it is no problem to transform it into an oven in roasted sweet potatoes."

There are hidden health hazards in roasted sweet potatoes furnace, which is really worrying. To this end, medical experts remind the public to eat as little sweet potatoes baked in this oven as possible in winter to reduce the harm to the body.

What are the advantages and disadvantages of baked sweet potato?

The advantages of eating baked sweet potato

Sweet potato, also known as sweet potato and sweet potato, is rich in sugar, vitamins and minerals, dietary fiber and so on. Carotene, vitamin B1 and other vitamins in sweet potato are necessary to maintain human health. The starch in sweet potato is mushy after heating, which makes vitamin C, which is heat-labile and soluble in water, well protected. Among them, minerals play a very important role in maintaining and regulating human functions; Calcium and magnesium can prevent osteoporosis; Potassium can lower blood pressure.

dietary fiber is particularly valuable for modern people. Medical research has confirmed that the lack of dietary fiber with laxative effect can induce various lifestyle diseases and colorectal cancer. After the sweet potato is cooked, some starch changes, which can increase the dietary fiber by about 4% compared with raw food. The increase of various water-insoluble fibers can effectively stimulate the intestine and promote defecation. When people cut sweet potatoes, they will find that a white liquid will ooze from the skin. Jasmine glycoside in this white liquid has a slow-down effect. The combination of dietary fiber and jasminoidin makes the laxative effect of sweet potato have a good effect of no hurry and no delay.

Modern medical research shows that sweet potato can eliminate active oxygen. Reactive oxygen species (ROS) is one of the causes of cancer, aging and arteriosclerosis. An experiment on mouse cells shows that among the 82 kinds of vegetable juices and plant components used in the experiment, sweet potato has the most obvious effect on inhibiting the proliferation of cancer cells. In addition, sweet potato can also inhibit skin aging. Hazards of baked sweet potatoes

1. Toxins produced by coal baking:

Doctors said that street-side baked sweet potatoes were baked with burning coal, and the baking process was not only polluted by toxic substances in burning coal, but also put on the stove after baking, without dust-proof and sanitary facilities, and was once again polluted by many factors. When coal is burned, it will produce a lot of sulfur dioxide and carbon dioxide, as well as a variety of harmful substances, some of which also contain toxic and harmful substances such as radioactive substances and arsenic. People eating these baked sweet potatoes will lead to chronic arsenic poisoning, and in severe cases, it will damage the digestive and respiratory systems.

2. Chemical barrels are turned into sweet potato stoves:

Because most of these barrels for baking sweet potatoes are filled with chemical raw materials, some of these scrap iron barrels are gasoline barrels, diesel barrels and some are chemical raw materials barrels, and chemical raw materials remain in the barrels. Many chemical raw materials contain ingredients that may be harmful to human health. After baking sweet potato at high temperature, harmful gases are adsorbed on sweet potato. If these chemical products contain benzene, it will do harm to people's respiratory tract and nervous system, and they will feel headache and dizziness after eating. Even if cooking oil was used before, the sanitary condition of these barrels could not be guaranteed because they were not thoroughly disinfected.

3. Black-spotted sweet potatoes are poisoned:

It is particularly important to remind the lovers of baked sweet potatoes that vendors usually bake sweet potatoes contaminated by black-spotted pathogen together with good sweet potatoes, and it is difficult to see the obvious black spots on the baked sweet potatoes. According to experts, the brown and dark brown spotted sweet potato skin is infected by the "black spot pathogen", and the toxin discharged by the black spot pathogen contains sweet potato ketone and sweet potato ketone alcohol, which will make raw sweet potatoes hard and bitter, and cannot be killed by boiling, steaming or roasting with fire, and is harmful to the liver after entering the human body. Patients with acute poisoning caused by eating black-spotted sweet potato will have symptoms such as vomiting and diarrhea, and in severe cases, they will have high fever, asthma, convulsions, vomiting blood, coma and even death. If poisoning is found, vomiting and diarrhea should be induced immediately and sent to hospital for treatment. How to make an oven roasted sweet potatoes at home

Wash the sweet potatoes, heat the oven first and preheat it for 5 minutes.

wrap the sweet potato in tin foil. You don't need tin foil here, you can just use the paper from the grilled fish outside and put it in the oven.

heat it to 1 degrees and bake it for 5 minutes.

if you want something soft, you can bake it for a few more minutes. There is no need to add other ingredients, because the sweet potato itself has a sweet smell.