These kinds of things can't be put in a thermos, do you know ?

These kinds of things can't be put in a thermos, do you know ?

1.Acid drink

 Because of its high melting point, stainless steel will not release harmful substances due to high temperature. However, stainless steel is afraid of strong acid. If you hold acidic drinks for a long time, it will damage the stainless steel liner .

2.Dry ice, carbonated beverage

Dry ice and carbonated drinks will increase the internal air pressure, resulting in failure to open the switch normally

3.Not suitable for making tea for long time .

If the tea is soaked at high temperature for a long time, the harmful components in the tea will be released. Therefore, you should drink it at the first time after making tea