According to the introduction of Food Partner Network, ammonium aluminum sulfate is a food additive, which is mainly used as a rapid leavening agent for flour food, which can make steamed bread ferment faster and taste softer. Ammonium aluminum sulfate is produced by aluminum sulfate and ammonium sulfate and contains aluminum ions. According to China's national food safety standard "Standard for the Use of Food Additives" (GB 2760-20 14), ammonium aluminum sulfate can be used in fried noodles, shrimp slices, bean products, baking powder, wafer biscuits, puffed food and aquatic products according to production needs, but the residual aluminum in the final food products should not exceed 100mg/kg. In addition, from July 20 14 1 day, potassium aluminum sulfate and ammonium aluminum sulfate shall not be used in the production of wheat flour and its products (except fried noodle products, batter, coated noodles and fried noodles). If ammonium aluminum sulfate is used according to the dosage and scope stipulated by national standards, it will not cause harm to human health. However, long-term excessive intake of aluminum-containing food additives may lead to the accumulation of aluminum in the body, affect the absorption and utilization of trace elements such as calcium and iron, and cause problems such as osteoporosis and anemia. Aluminum may also cause damage to the nervous system, increasing the risk of diseases such as Alzheimer's disease and memory loss. Therefore, ammonium aluminum sulfate, a food additive, is safe under reasonable use, but consumers are advised to choose food additives with no or low aluminum content as far as possible, pay attention to controlling daily intake and maintain a balanced eating habit.