December 5, 5, located in Shanghai Huoshan Road, No. 203, A Wen night market soybean milk doughnut store posted a "suspension of business" notice, the North Bund area is very famous net red doughnut store has been closed down. December 4, in the Shanghai Consumer Protection Commission issued a "doughnut consumer inspection situation "Briefing, reported the results of 29 restaurants. Shanghai Food and Drug Administration said that of the above 29 food and beverage stores, five are suspected of being unlicensed, and the relevant District Market Supervision Bureau has been banned in conjunction with the local government and relevant departments. Ah Wen Night Market Soya Bean Milk and Doughnut Shop is one of them.

Shanghai Food and Drug Administration said that the aluminum in fried noodle products mainly comes from the food additives used as a bulking agent, potassium aluminum sulfate, aluminum sulfate amine (commonly known as alum). The National Standard for Food Additives of the National Standard for Food Safety stipulates that the limit of aluminum residue in deep-fried noodle products (dry sample) is 100 mg/kg. The use of aluminum-containing bulking agents in accordance with the standard limit will not have a health impact on the human body, but excessive intake of aluminum may have a neurological, reproductive and developmental impact on the human body and is associated with the occurrence of chondromalacia and osteoporosis.Since 2017, the Bureau has organized the Market Supervision Bureau of all districts to supervise and test the samples of deep-fried noodle products, such as fried doughnuts, made by the catering units in 132 batches, and the samples of edible vegetable oil in the frying process in 620 batches. The results show that: among the 132 batches of fried noodle product samples such as oil sticks sampled, 3 batches of aluminum residue did not comply with the provisions of the "National Standard for Food Safety, Standard for the Use of Food Additives" (GB2760-2014), with a sampling pass rate of 97.7%; among 620 batches of edible vegetable oil samples in the frying process sampled, 3 batches of acid price and carbonyl price did not comply with the "Hygienic Standards for Edible Vegetable Oils during Frying" (GB7102-2014). "(GB7102.1-2003) provisions, the sampling pass rate of 99.5%.

From the results of supervision and sampling in recent years, Shanghai fried noodles and other fried noodle products, aluminum residue indicator pass rate has improved significantly, in the past two years to maintain a high level. For sampling found that the processing or use of food safety standards do not meet the food unit, Shanghai Food and Drug Administration requires the relevant District Market Supervision Bureau in accordance with the law from the strict investigation and handling, and will be recorded in the relevant information into its food safety credit file.