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Harm of aluminum ion: the long-term accumulation of aluminum in patients with renal failure will seriously threaten the bone, brain and nervous system of the patients. Since most of the aluminum is absorbed into the body through diet, the aluminum content of beverages with different packaging but the same content is detected. Because aluminum is not easily absorbed by the intestines and stomach, more than 90% of the aluminum ingested in the diet will be excreted from the body through faeces, urine and even sweat. Therefore, the domestic food hygiene authorities have not clearly defined the normal range of aluminum content in food, but patients with renal failure with renal insufficiency can not normally excrete aluminum from the body, resulting in aluminum poisoning, Therefore, we hope to know the aluminum content of all kinds of packaged beverages from this experiment, so as to make suggestions for patients to choose beverage packaging. The results showed that under the same content, the aluminum content of aluminum canned drinks was significantly higher than that of bottled drinks, while the aluminum content of tea drinks was generally higher. As a common metal, aluminum is widely used. Because it can lead to memory loss and other reasons, it has been identified as food pollutants and controlled. The content of aluminum ion in aluminum canned drinks is related to the type, storage time and brand of drinks. We discussed its feasibility, and finally made clear the research purpose and significance of the subject: to understand the impact of aluminum ion on human health; Objective to explore whether there is aluminum ion in common aluminum canned drinks, and compare the content of Al3 + in them. Through this exploration activity, we will strengthen the understanding of food safety, especially the food safety of drinks, and put forward suggestions for drinking drinks. At the same time, we hope that through this research activity, we can improve the food safety awareness of us and the people around us, and improve their basic chemical quality.