How to remove the scale from thermos bottle?

The scale on the container wall should be cleaned frequently, which will become difficult to clean after a long time.

Firstly, remove the scale on the walls of thermos bottles and kettles. There is Taishan Tiangong scale remover in Taobao, which only scales and does not harm metal materials;

Second, to remove the scale in boiling water, there is a patented product Taishan Tiangong scale filter, which costs ten yuan, and can easily remove the scale, rust and other sediments and suspended solids in boiling water.

Third, whether it is a kettle or a thermos, it is easy to remove scale by frequent cleaning.