Introduction: Tourmline Gem is formulated by using rare white crystal "tourmaline" from Brazil and porcelain clay. An eco-friendly product without heavy metal (lead, cadmium) and is manufacturerd under high temperature. Within each cubic centimeter of the glazed surface, 1000-2000 units of negative ions can be naturally generated. Meanwhile, far infrared rays are also released. the macromolecular group of water becomes a small molecular group and is easily absorbed by the human body. Because of the continuously releasement of negative ions, which is several times higher than ordinary ceramics, therefore ordinary water with toumaline gem inside can instantly reach the sweet taste like natural spring water.