Not exactly. If it is of high quality, it will not be harmful, but very beneficial. Using high-quality drinking water, the water quality will be sweeter. High-quality purple mud is rich in minerals and trace elements, and it is easily absorbed by the human body, thus playing a health care role. However, if you buy inferior purple sand cups or teapots, these inferior products generally contain a lot of chemical raw materials and metal elements, which will be precipitated in large quantities at high temperature, and the human body will absorb these harmful substances, but liver organs will appear.