Soak these things in a thermos cup, not for health, but for poison? The truth is

As the weather gets cooler, the thermos cups of health partners are “online” one after another. The related rumor about the thermos cup is not lonely. It follows closely: the thermos cup will make people poisoned if it is made for too long, and the thermos cup can not contain medlar water Is it true or not? < / P > < p > a layer of scale formed by the deposition of tea, without corrosive components. The stainless steel used in the inner wall of the thermos cup is inert material, which is difficult to be corroded. Therefore, it is not true that “heavy metals will be separated out when making tea in the thermos cup”. < / P > < p > when using the thermos cup, it is necessary to strictly prevent the growth of bacteria. Because the inner liner of the thermos cup is thick, a large number of bacteria will hide in the hygiene dead corner. After one day’s use, it should be cleaned thoroughly. A little baking soda can be put into the cup to wash the inner liner. After cleaning, the water stains in the cup should be dried fully, and then the cup cover should be covered. According to the Internet legend, soy milk in a stainless steel thermos cup will dissolve the “soap toxin” in soy milk, which will harm human health. < / P > < p > there is no saponin in the boiled soybean milk, so even if it is poured into the thermos cup, the phenomenon of “soybean milk poisoning element dissolution” is impossible. In addition, it is safer to store soymilk in a thermos cup than to store soymilk directly in the air. This is because the soymilk is put into the thermos cup and the lid is tightened to form a “closed space”. The air and microorganisms in the thermos container are limited, which makes it more hygienic and safe in a short time. < p > < p > it is best to drink high protein milk within 3 hours. If you want to keep it for a longer time, you have to soak and wash the thermos cup with boiling water to kill the bacteria that may exist in it, and then pour in soybean milk, milk, etc. However, it is not recommended to keep soymilk in a mug for a long time. < / P > < p > many people think that drinking wolfberry water or carbonated drinks in insulated cups is harmful to health, because the acids, alkalis and salts in wolfberry and carbonated drinks will corrode the cups and lead to the dissolution of alloy elements. < / P > < p > we can’t put aside the toxicity of dosage. Although wolfberry and carbonated drinks are acid-base, they are very weak. Even if they are soaked for several days, there is no need to worry about the dissolution of alloy elements in stainless steel cups that meet the standard. Even if there are trace alloy elements dissolved in corrosion, chromium, nickel, manganese, molybdenum and other alloy elements in stainless steel used in tableware are also essential trace elements for our human body, which will not affect our health. < / P > < p > If Lycium barbarum is soaked in high temperature water for a long time, many nutrients such as vitamins in Lycium barbarum will be lost. And with wolfberry water, which can not fully play the efficacy. < / P > < p > in the face of many kinds of mugs and materials on the market, many consumers will distinguish the quality of the material by whether the stainless steel has magnetism, and think that the mug that can be absorbed by a magnet is a good mug. < / P > < p > according to the national standard gb9684, stainless steel materials for tableware include austenitic stainless steel, AUSTENITIC FERRITIC duplex stainless steel, ferritic stainless steel, etc., among which austenitic stainless steel has no magnetism. < p > < p > 304 stainless steel belongs to austenitic, chromium and stainless steel with high price. The austenitic stainless steel with low nickel and manganese also has no magnetism. It uses manganese and nitrogen instead of part of nickel, which is relatively cheap, but its performance and safety are not poor. Therefore, magnetism is not the standard to judge the quality of thermos cup. < / P > < p > people who are allergic to metal elements must check the specific composition of stainless steel on the Internet according to the marked stainless steel brand. For example, patients with nickel allergy should not choose 304 stainless steel products, while patients with manganese allergy should not choose stainless steel products with low nickel and manganese content. < / P > < p > Second, look at the material. 304 and 316 stainless steel are preferred, but other materials can be selected as long as they have clear identification and meet the national safety standards. Pay attention to the material inside the cup cover and the straw in direct contact with the contents to see if they meet the food safety standards. < / P > < p > look at the appearance. Pay attention to whether the external surface, welding, printed words and patterns of the cup are normal, whether the switch button of the cup cover is normal, whether the rotation performance and sealing are guaranteed, and whether the parts are easy to disassemble, wash and reassemble. < / P > < p > four views on heat preservation energy efficiency. The higher the retention temperature of 95 ℃± 1 ℃ hot water after the specified time under the specified environmental temperature of 20 ℃± 5 ℃, the better the heat preservation efficiency. Cai Shaofen stopped pregnancy for the first time. The 4 indexes on the B-ultrasound sheet in the early pregnancy were used to see whether the fetal development was good or not