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Why can't you eat roasted sweet potatoes on the street?

Male  30 years old 2018-06-18
I like to eat roasted sweet potatoes. When I see roasted sweet potatoes, I will buy one. My husband said that the sweet potatoes on the street can’t be eaten, which is bad for health. Why can’t this kind of sweet potatoes be eaten?

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  • BY Ina Barton 2018-06-18
    If you want to eat roasted sweet potatoes, it's best to roast them in the oven. Don't eat roasted sweet potatoes on the street. Most of the roasted sweet potato stoves on the street are made of abandoned iron drums, some of which are gasoline drums or diesel drums, and some are chemical raw material drums. Because these waste iron drums have not been thoroughly sterilized, the sanitation status cannot be guaranteed. . In some iron buckets, many chemical substances remain, and most of these chemical substances are harmful to the human body. After the sweet potato is roasted in an iron bucket at high temperature, it will absorb many chemicals in the bucket. People eating such roasted sweet potatoes will cause harm to the respiratory tract and nervous system.
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