1. Boiling water in stainless steel insulated cups is non-toxic. Stainless steel insulated cup is made of inner and outer layers of stainless steel, welding technology is used to combine the liner and shell together, and then vacuum technology is used to pull out the air between the liner and shell, so as to achieve the effect of vacuum insulation. It has many advantages, such as good heat preservation performance, lightweight, anti-crack, anti-corrosion, anti-extrusion, good heat resistance and rapid change, convenient use and so on. And the stainless steel insulated cup uses food-grade 304 stainless steel as the material, to ensure that the amount of heavy metal dissolved in the water thermos cup does not exceed the standard, including lead.
The inner cover of the regular stainless steel insulated cup is made of PC material. This PC material has no taste and will not be deformed when boiled in boiling water. The rubber ring is made of silica gel and non-toxic material. So drinking boiled water by stainless steel insulated cups is not toxic, and it won't do harm to health. But do not choose too cheap stainless steel insulated cups, because 304 stainless steel cost determines the quality.
2. Stainless steel insulated cups used to store acid and alkaline substances are harmful. Stainless steel depot cupsbelong to alloy products, and improper use will make the heavy metal substances contained release, which is harmful to health. In daily use, it is not a big problem to pour ordinary boiled water with stainless steel insulated cups, but do not put acidic drinks, such as fruit juice, coffee, carbonated drinks, etc. Because it is easy to precipitate heavy metals, and then even if you use it to drink water, it will not be safe.
3. It is harmful to brew milk in stainless steel insulated cups. Filling milk in stainless steel insulated cups causes bacteria to multiply every 20 minutes and spoil the milk in three to four hours. In addition, the constant temperature in the thermos cup can destroy the vitamins in milk, which will directly affect the health of the body and mind.
It is not recommended to use stainless steel depot cups to brew tea. Tea contains a lot of tannic acids, theophylline, aromatic oil and a variety of vitamins, which is only appropriate to brew by about 80 degrees of water. If the tea is made in an insulated cup, the tea leaves are soaked in high temperature and constant temperature water for a long time, just like frying with a warm fire. A large number of vitamins in tea are destroyed, aromatic oil volatilizes, tannic acid and theophylline are greatly leached, which not only reduces the nutritional value of tea, but also makes tea juice odorless, tea taste bitter and harmful substances increase. If tea leaves are soaked for too long, heavy metals may be released from tea leaves, which is harmful to health. Therefore, it is not recommended to use stainless steel insulated cups to steep tea.
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