1. According to the inquiry letter community, Ziyang selenium pottery tea set is produced in Ziyang County, Shaanxi Province, and is a natural selenium-enriched gathering area in China. The clay in this area is rich in trace elements such as selenium, iron and calcium. Pottery made of clay here, boiled in water or added with water, has health care function.

2. When water is left in selenium pottery or boiled for a long time, selenium will be separated from the pottery, making ordinary water become selenium-rich water. Selenium-enriched water can supplement the vitamins needed by human body and is beneficial to human health.