How to identify "black heart" fans

Introduction: dongfang.com reported on May 8: "recently CCTV exposed a group of" black heart "Longkou fans I asked many units, but probably because during the May Day holiday, many units could not contact me, so I had to ask the morning post for help to find out what the problems of these" black heart "fans were, whether they were sold in Shanghai, and how to identify them." Since CCTV exposed the use of agricultural chemical fertilizer production by poisonous fans in Longkou, a large number of readers have called the morning post hotline to find out whether Shanghai poisonous fans are selling and identifying fans Yesterday, the reporter visited several large supermarkets in the city and found that there were many Longkou fans for sale From the perspective of packaging, these Longkou fans have their own brands, including 900g, 500g, 300g and other specifications Most of their origins come from Shandong Province After careful comparison, the reporter did not find seven kinds of poison fan brands exposed by CCTV The reporter learned that recently, CCTV exposed the well-known fans in Longkou, Shandong Province, saying that corn starch was used as pea starch in the production of Longkou fans in Zhaoyuan and Longkou areas of Yantai City, Shandong Province, and harmful substances such as ammonium nitrate and ammonia were added in the processing process to directly extract the leftover starch, and then the products made by adding whitening agent were transported to the country All places In September last year, the latest national standard for Longkou vermicelli clearly stipulated that the starch raw material for Longkou vermicelli production must be mung beans or peas, and no other starch can be used instead If corn starch is contained in vermicelli, it will lead to rotten and broken when cooked As for the agricultural fertilizer ammonium hydrogen nitrate, ammonia and other harmful substances contained in poisonous vermicelli, Chen Fang, lecturer of the school of food, China Agricultural University, said that if the product contains ammonia residue, the human body will cause damage to the mucous membrane of respiratory tract and digestive tract system on the one hand 。 On the other hand, when ammonia enters the blood circulation system of human body, it will destroy the central system of human body, which is mainly manifested as language disorder and blurred vision Ammonia may also be converted into carcinogens such as nitrite Because Longkou fans are a collective brand of Shandong origin, equivalent to Chongqing hot pot and Fuling pickle, and the fans exposed by CCTV to contain carcinogens are only seven of them So it's not that all Longkou fans have problems, but not all fans except these seven brands are safe When consumers buy fans, if they can follow certain rules, they can still avoid buying such fans.