How to buy a thermos vacuum flask?

Why is it not appropriate to buy a stainless steel thermos vacuum flask that is particularly cheap?How to buy a thermos vacuum flask?

 The quality of stainless steel thermos vacuum flasks sold on the market at present varies greatly. In many large shopping malls, the price of a stainless steel thermos vacuum flask can reach more than ten dollars, or even tens of dollars. However, in some roadside stalls and small shops, the price of each thermos vacuum flask is only a few dollars, which makes many consumers do not know how to choose.

Stainless steel thermos vacuum flask is also known as stainless steel vacuum thermos bottle. It is formed by drawing stainless steel plate and vacuum sealing. The steel plate is non-toxic. It can keep the water temperature above 50 ℃ in five hours. The stainless steel thermos vacuum flasks has the following advantages: hygiene, leak proof, anti-collision and heat preservation. These advantages make the stainless steel thermos vacuum flasks very popular.

However, with the hot sale of stainless steel thermos vacuum flasks, counterfeit and inferior stainless steel thermos vacuum flasks have also come into the market, making the whole stainless steel thermos vacuum flasks Market a mess. Inferior products are mainly divided into the following categories:

1. Using non vacuum as vacuum; using very thin stainless steel plate to make liner and shell;

2. Some even use ordinary steel plate as stainless steel;

3. The worst is that some manufacturers, regardless of the health of consumers, use toxic materials to make "stainless steel thermos vacuum flasks" and sell them on the market.

Experts in the thermos vacuum flasks industry remind consumers that all stainless steel thermos vacuum flasks with rust or foreign bodies in the tank may be made of inferior or toxic materials. They can only be used after being tested by relevant inspection departments and proved to be non-toxic or harmless to human body. In addition, as long as the price is particularly low stainless steel thermos vacuum flasks, its vacuum performance is generally not very good, the quality of the material is not good, we must not be greedy for small and cheap and buy poor quality stainless steel thermos vacuum flasks.

Experts from relevant quality inspection departments and industry insiders remind us that inferior stainless steel thermos vacuum flasks not only have poor heat preservation effect, but also may cause various diseases. In order to avoid your health being threatened, please try not to buy cheap and inferior stainless steel thermos vacuum flasks.