Tea set collection has existed since ancient times, which can not only realize the function of making tea, but also be used as home decoration, and also has certain value-added space. Many tea lovers are willing to collect several sets of their favorite tea sets when economic conditions permit. There are many kinds of tea sets, such as porcelain tea sets and purple sand tea sets. This paper mainly introduces the collection of purple sand tea sets. Zisha pot is a major item of folk collection, and its collection and investment have existed since ancient times. At the end of 1970s, the investment value of teapot was valued by people, and the market price kept rising, but imitations also appeared in large numbers. You must improve your appreciation level when collecting purple sand pots, so as not to fall into the three misunderstandings of purple sand art collection. There are three misunderstandings in the collection of purple sand tea sets. One is the misunderstanding of "soil". In the past, people thought it was best to make tea in a teapot without losing the original flavor of tea because Yixing's purple sand has a double-hole structure after firing, which has high water absorption and breathability that ordinary ceramic utensils lack. Nowadays, with the popularization of ceramic art, many people mistake purple mud for ordinary purple soil or "purple mud", and the "purple mud pot" made of this raw material obviously has no advantage in the function of making tea. The second is the misunderstanding of color. Yixing purple sand has dozens of natural colors because of the different distribution of mining areas and seams, which is very wonderful. Natural purple sand mud includes red mud, or vermilion mud, purple mud, Benshan green mud (yellow), azure mud (there is gold in the mud, which is very rare when it is mined) and sand mud. However, in order to meet people's ornamental needs, many pot makers will add chemical raw materials at will when making pot mud. Although the final pot is bright in color and smells when making tea, its value is not high. The third is the misunderstanding of "old". Many people think that the older the teapot, the better, and specialize in hiding old pots and old pots. There are two methods of counterfeiting in the market. One is to make the mud surface old by polishing the shoes, which looks antique like people often touch it, or corrode it with strong acid; The second is to paint the teapot with white cement and soak it in water to make it unearthed. In fact, the key to measure the collection value of teapot is to look at the artistic value, not necessarily the older the better. Maintain the teapot and tea set six series of tea sets with collectible value, but poor maintenance will greatly reduce the value of tea sets. At the same time, tea sets are often used in daily life, so tea sets also need careful maintenance. Rinse the tea set with clear water immediately after use. Never scrub the inside of it with your hands or cloth or rough things, and don't suck it directly on the spout with your mouth to prevent the odor. This kind of tea set has been used for a long time, and even without tea leaves, it can make excellent and delicious tea. Tea sets that are not used at ordinary times should be cleaned, waxed and put in a dry place, so as to keep the tea sets beautiful and clean. Some valuable tea sets should be carefully maintained. The following are some tips for maintaining the teapot, which can provide some help for everyone in the process of maintaining the teapot. 1. Thoroughly clean the inside and outside of the pan. Whether it is a new pot or an old pot, the wax, oil, dirt and tea stains on the pot should be cleaned before maintenance. 2. Make real tea. The more times you make tea, the more tea the pot absorbs. When the soil tire is absorbed to a certain extent, it will penetrate into the pot surface and shine like jade. 3. Don't touch the oil. The teapot is the most oil-free, so it must be cleaned immediately after it is touched, otherwise the teapot will not absorb tea, leaving only oil stains. 4. Brush moderately. After the pot surface is drenched with tea leaves, gently brush the tea leaves accumulated in the pot with a soft brush, rinse them with boiling water, and then gently wipe them with a clean tea towel. Don't keep rubbing hard. 5. After drinking tea, wash and dry the tea set, remove residues and avoid peculiar smell, which needs to be rearranged. 6. Let the teapot have a rest. After soaking the teapot for a period of time, you need to have a rest, so that the soil tire can dry naturally and thoroughly, and it can be better absorbed when it is used again. According to these six steps to maintain the tea set, the brightness of the tea set will not fade for a long time, and it will maintain a bright luster, and people will not be afraid to touch the tea set.