Huili has been producing red copper since ancient times, and the copperware processing and manufacturing industry has been very developed since the Tang Dynasty and has continued to this day. According to literature, Huili had copper smelting as early as the end of the Eastern Jin Dynasty (400 AD). Copper mining and processing industries have flourished since the Tang and Song Dynasties. During the Nanzhao period, copper products such as red copper hot pots were exported to other places, especially in the Qing Dynasty. [Distribution area] Huili is located at the junction of Sichuan and Yunnan, adjacent to Huize and Qiaojia in Yunnan, and is a thoroughfare on the "Southern Silk Road" in history. The county seat and Luchang, Tong'an, Lixi and other places still produce and process copperware according to traditional methods. The old street in Luchang Town is now named "Copper Street" for copperware. [Basic content] Huili red copper hot pot is a tableware carefully made by craftsmen. It is very particular from material selection to processing. It has beautiful appearance, durability and exquisite craftsmanship. The hot pot is divided into six parts: pot cover, pot trough, chimney, air inlet base, latch, and hot pot ear chain. The processing and production process includes: 1. Material selection and preparation. The copper used to make the hot pot cannot be made of copper with too high purity. It must be made of local associated copper that does not contain harmful elements. The copper content of the county's deer factory is more than 80%, and it also contains 20% of gold, silver, selenium and other metals. It is the first choice of craftsmen for making hot pots. 2. The process of making and processing copper hot pots is relatively complicated, and the forging technology, fire control, and shape requirements are relatively high. The main process flow is: cutting copper billets into furnaces, firing, forging into pieces, designing molds, forging and knocking, forming, connecting, making, soaking, polishing and other processes. 3. Craftsmanship and skills. Copper hot pots have different shapes, but the basic shapes are mostly the same. Since its production is all oral and experience, the material selection, mold design, forging technology, the level of dilute sulfuric acid preparation, and aesthetic ability all reflect the unique craftsmanship of copper hot pot making. (1) Main tools and facilities Furnaces, tongs, high and low anvils, sledgehammers, hand hammers, and soaking tanks for forging copper billets. (2) Products Copper pots, copper kettles, copper basins, copper mirrors, copper rings, copper drums, copper bracelets, copper bowls, copper chopsticks and other daily necessities and artworks such as the twelve zodiac animal statues and statues of gods. [Basic characteristics] 1. Raw material characteristics. Huili copper hot pot and related products are all made of high-quality red copper collected locally. The copper raw materials are carefully selected. Among them, the copper collected from Luchang has a copper content of more than 80%. It also contains other non-ferrous metals such as gold, silver, and selenium. It is easy to forge without cracking and has a good color and finish. It is the best raw material for Huili red copper hot pot. 2. Process characteristics. The processing and production process of red copper hot pot is relatively complicated and is completed entirely by hand. Although the production of red copper hot pot has a history of nearly two thousand years, the core technology depends entirely on the master-apprentice oral transmission, oral transmission, long-term practice and the understanding of craftsmen, and there is no written record. Its material selection, production model, fire control, soaking, etc. are all unique. 3. Product features. Appearance features: The red copper hot pot is brightly colored, beautifully shaped, beautiful and practical, simple and light, and has good finish. The cylindrical chimney in the middle is higher than the pot surface and is tightly surrounded by the semicircular pot groove. The cylindrical bracket at the bottom supports the pot surface, and there is a vent below. The pot surface is covered with an arched pot cover. The pot is also not brittle, smooth and not slippery, not easy to stick to the pot, and durable. [Basic value] Huili red copper hot pot craftsmanship has a long history and is a typical representative of folk copperware production. It has important historical, economic, technological and social value. 1. Historical value. The production of red copper hot pot has a long history. It was very developed in the Tang and Song dynasties. In the Ming and Qing dynasties, the copperware produced in Huili was sold to neighboring provinces and counties. It can be seen that Huili copperware production has important research value for studying the history of metal processing and production technology, production and life history, and metallurgical history of the Chinese nation. 2. Craft value. The red copper hot pot has exquisite shapes, diverse patterns, and exquisite texture. It is not only a daily necessity, but also has a very high level of craftsmanship. 3. Economic value. In history, Huili copper hot pots were sold far and wide and became an important part of Huili people's income. Today, it plays a positive role in helping people get rid of poverty and become rich, and increasing their income. 4. Social value. Dishes cooked in Huili red copper hot pots are more fragrant and delicious than those cooked in iron pots and aluminum (antimony) pots. Modern medical tests have shown that selenium and other elements contained in red copper hot pots can be obtained by cooking food in copper utensils. They are deeply loved by the people. Almost every household in Huili has a red copper hot pot.