For vacuum insulated cups, many people want to pack some unsuitable drinks for convenience. For example, acidic drinks are not suitable. Stainless steel has a higher melting point and will not release harmful substances due to high temperature melting. However, stainless steel is afraid of strong acid. If it is loaded with more acidic beverages for a long time, it is likely to cause damage to its inner tank. Damage to the inner tank is not only harmful to the human body, but also greatly damages the insulation performance of the vacuum flask.

Vacuum flask is not suitable for milk

Vacuum thermos cups are not suitable for milk. Some people will put hot milk in the thermos cup. However, this practice allows the microorganisms in the milk to multiply rapidly at a suitable temperature, leading to corruption and easily causing diarrhea and abdominal pain. In the high temperature environment of milk, vitamins and other nutrients will be destroyed. At the same time, the acidic substances in the milk will also chemically react with the inner wall of the vacuum flask, which will affect human health. Experts said that whether it is milk or acidic juice, it must be consumed within a certain period of time.

Vacuum flask is not suitable for acidic beverages

It is well known that acidic beverages are corrosive, so stainless steel vacuum flasks are not suitable for holding acidic beverages. If they are installed for a long time, they will cause damage to the vacuum flask and reduce its thermal insulation function.