The thermos flask is rinsed and rinsed, washed and rinsed, why is there still a peculiar smell? Take a closer look, my God! There are water stains in the thermos, and even red spots like rust! It's terrible! The bottom of the bottle is easy to rust and the aroma of the beverage is too strong, which makes it impossible to fill other beverages. After using the thermos for a long time, you will find signs of rust like red spots on the inside. However, the material of the thermos is stainlesssteel
