Blue and white porcelain, also known as white ground blue and white porcelain, is often referred to as blue and white. It is one of the mainstream varieties of Chinese porcelain and belongs to underglaze colored porcelain. Blue and white porcelain is made by using cobalt ore containing cobalt oxide as raw material, painting patterns on the ceramic body, and then covering it with a layer of transparent glaze, which is fired by a high-temperature reduction flame at about 1300 ℃. The cobalt material is blue after firing, which has the characteristics of strong coloring power, bright hair color, high firing rate and stable color. The working people of the Han nationality have a long history of making porcelain with a wide variety. The original blue and white porcelain appeared in the Tang and Song Dynasties, while the mature blue and white porcelain appeared in the Hutian kiln in Jingdezhen of the Yuan Dynasty. Blue and white porcelain became the mainstream in the Ming Dynasty. The development reached its peak during the Kangxi period of the Qing Dynasty. Jingdezhen blue and white porcelain is one of the four traditional famous porcelains in Jingdezhen because of its exquisite firing, beautiful shape, gorgeous colors and exquisite decoration. It is lead-free, non-toxic, acid resistant and wear-resistant, and its face color lasts for a long time. It is known as "blue and white that will never fade". This product is made by hand. The glaze and blue and white materials are made of high-grade imitation clear pigments. The bottle body landscape is surrounded by flowers, with a beautiful composition. The bottle neck flowers, the circled foot pattern and the bottle body landscape complement each other and complement each other. The layers are clear. The porcelain is mild and delicate, the glaze is simple and beautiful, crystal and rich, fresh and nourishing. It is very ancient, and has high artistic appreciation and practical value.