China is the hometown of vinegar, opening seven things, rice, oil and salt sauce vinegar tea, since ancient vinegar has an important position in the people's lives. China has a vast territory, rich products, and different climates in the north and south. According to its history, geography, products and habits, various localities have created a variety of distinctive vinegar processes and brand vinegars in long-term production practices, such as Shanxi Laochen Vinegar and Zhenjiangxiang. Vinegar, Fujian red yeast vinegar, Sichuan Baoning bran vinegar, Jiangsu and Zhejiang rose vinegar, Kazuo vinegar, Beijing vinegar, Shanghai rice vinegar, Dandong white vinegar. Among the many vinegars, Kazuo vinegar is refined by traditional techniques. It has the characteristics of purple color, sweet and sour taste, rich aftertaste and long-term storage. Now it has formed a series of products such as old vinegar, white vinegar, vinegar, honey vinegar, mushroom vinegar, dumpling vinegar and vinegar.

Kazuo purple sand products are high-temperature pottery made from purple sand ore as a raw material through various processes. The appearance of the ore has the Kazuo purple sandware Kazuo purple sandware color purple, purple brown, vermilion and many other colors. The texture is fine and hard, and the particle structure is tight. The firing temperature is high and the sintering temperature is very close to that of porcelain, so it is a high temperature pottery. Because the raw material contains uniform sandy particles, the appearance of the particles after burning is clear and gentle. Because the purple sand ore has a lot of colors, people make full use of the original color of the ore to prepare a variety of different colors of purple sand mud. It is also possible to formulate different kinds of mud materials according to different uses, which is convenient for the production process to meet the requirements of the mud material. The appearance of purple sand products is suitable for engraving, good breathability, natural color, no glaze, good plasticity.