Will steaming buns directly with tap water cause cancer?

Will steaming buns directly with tap water cause cancer? Recently, this "authoritative science popularization" post claiming to be disclosed by experts has begun to be reposted crazily in WeChat Moments. After verification by reporters, the experts mentioned in the post did not exist, and experts from Tongji University Water Technology Research Institute also refuted the erroneous remarks in the post, saying that the content of the post was not reliable.

The WeChat Moments went viral: Chlorine in tap water can cause cancer

"Professor Qi from Beijing Xuanwu Hospital's article... No wonder more and more people are suffering from cancer. When cooking, be sure to use boiled water or filtered water. Because if you use tap water directly, tap water contains chlorine, and after heating,

Since the pot is covered, the chlorine is completely covered on the food, so be sure to use boiled water or water that has been filtered to remove the chlorine to steam food. Because chlorine is carcinogenic..."

Recently, such a post has been circulated many times and forwarded and commented on by many netizens. Many netizens expressed shock at the content of the post. "This is the first time I've heard that tap water causes cancer. Be careful when steaming or cooking in the future!" one netizen commented.

The hospital announced that it did not find any Professor Qi, as reported online

In the online post, it was stated at the beginning that the above remarks were made by "Professor Qi of Xuanwu Hospital", but netizens did not point out who this "Professor Qi" was.

In fact, this post has been circulating for more than a year. Just when this matter was hotly discussed by netizens, staff from the Xuanwu Hospital affiliated to Capital Medical University stated that there were two experts with the surname Qi in the hospital, one in the vascular surgery department and the other in the endocrinology department. Both doctors were associate chief physicians. After investigation, the hospital found that these two Doctors Qi had no relationship with the "Professor Qi" on WeChat.

On July 31, 2013, Xuanwu Hospital's official Weibo account released a statement saying: A post circulating online titled "Professor Qi from Xuanwu Hospital on the need to boil water before steaming food" has attracted public attention. Upon verification, there is no such "Professor Qi" in Xuanwu Hospital. Xuanwu Hospital hereby declares that any information not released on the official Weibo of Xuanwu Hospital does not represent the views of Xuanwu Hospital.

Steaming buns with tap water is harmless to the human body

Experts: Steaming buns with tap water is harmless to the human body

Professor Gao Naiyun from the Institute of Water Technology, School of Environmental Science and Engineering, Tongji University told reporters that there will be some microorganisms in the pipeline when tap water is transported, and chlorination is a method used by almost all countries in the world. The principle is that chlorine forms hypochlorous acid in water, which can turn organic matter in the water into harmless byproducts.

"According to Beijing's standards, the residual chlorine content in tap water is below 0.8 mg per liter, which is lower than Shanghai's standard of 1.0 mg." Professor Gao said that Beijing's tap water is required to have a chlorine content of less than 100 mg per liter when it enters the pipe network.

0.5 mg per liter. "How low is 0.5 mg? In fact, if the chlorine content in tap water exceeds 0.8 mg per liter, most people can smell a strong chlorine smell with their noses. Not to mention 0.5 mg per liter."

"Chlorine is indeed carcinogenic, but tap water evaporates when heated, and the content is very low and harmless to the human body. If we really want to cover the food with volatile chlorine, how much chlorine would be needed?" Professor Gao said that on July 1, 2012, my country began to implement the new version of the national drinking water hygiene standards, and the testing indicators increased from the original 35 to 106. This also ensures that tap water is safe for drinking. Even if the pot for steaming or cooking food is sealed, it will not cause harm to the human body as long as the water quality is qualified.