Is using stainless steel insulated cups to hold liquids harmful to the body?
In daily life, people usually use thermos cups to hold water for drinking, especially in winter. Will using a thermos to hold liquids cause chemical changes that are harmful to the body? Let the Water Cup Network give you the answer below.
In fact, simply using a stainless steel thermos to hold boiling water is non-toxic and does not cause any harm to the human body.
The stainless steel insulated cup is made of inner and outer double-layer stainless steel, and the inner and outer shells are combined together by welding technology. Then, vacuum technology is used to extract the air in the interlayer between the inner and outer shells to achieve vacuum insulation effect. It has many advantages such as good insulation performance, light weight, anti rupture, anti-corrosion, anti extrusion, heat resistance to sudden changes, and convenient use. Moreover, the stainless steel insulated cup is made of food grade 304 stainless steel, ensuring that the amount of heavy metal dissolved in the water filled insulated cup does not exceed the standard, including lead. At the same time, the inner lid of a regular stainless steel insulated cup is made of PC material, which has no taste and will not deform when boiled in hot water. The rubber ring is made of silicone as the raw material and is also a non-toxic material.
So, are stainless steel insulated cups toxic? Stainless steel insulated cups purchased through legitimate channels for drinking hot water are non-toxic and do not pose a threat to human health when drinking water. But be careful not to choose stainless steel cups that are too cheap, as the cost of 304 stainless steel determines the quality. Generally, the price of a good stainless steel insulated cup ranges from 100 to 500.
However, if stainless steel insulated cups are used to contain acidic or alkaline substances, they will produce toxic substances that are harmful to the body.
It is not toxic to drink water in a regular stainless steel thermos cup, but if the stainless steel thermos cup is filled with tea, milk, soybean milk and other substances instead of boiling water, you should drink it carefully. Tea contains a large amount of tannic acid, theophylline, and aromatic oils, as well as various vitamins. If tea is brewed in a thermos, the tea leaves will be soaked in high-temperature water for a long time, greatly reducing the original nutritional value of the tea, making the tea leaves tasteless and bitter, and harmful substances in the tea will also increase. If this thermos is used to mix milk, it can cause bacteria to reproduce every 20 minutes, and after 3-4 hours, the milk can spoil. In addition, a constant temperature in a thermos can destroy vitamins and other nutrients in milk, which can directly affect physical and mental health.