Many people say that no matter the liquor, water or coffee, will all become more mellow and delicious when they are in a Jian Zhan tea cup. That is because the special functional design of Jian Zhan for its iron content, sand content, as well as the thickness of the cup embryo and glaze. Therefore, using Jian Zhan to drink tea, it can help to preserve the heat for a long time and to improve the alkalinity in the tea liquid, so that to ensure the taste of tea, and also stimulate and enhance the aroma of the tea.