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Ceramics and pottery in Mexico date far back before the Pre-Columbian period for thousands of years, when the ceramic arts and pottery crafts developed with the first advanced civilizations and cultures of Mesoamerica. With one exception, pre-Hispanic wares were not glazed, but rather burnished and painted with colored fine clay slips. The potter’s wheel was unknown as well, with pieces being shaped by molding, coiling and other methods.
After the Spanish Invasion and Conquest, European techniques and designs were introduced, nearly wiping out the native traditions. Indigenous traditions survive in a few pottery items such as comals, and the addition of indigenous design elements into mostly European motifs. Today, ceramics are still produced from traditional items such as dishes, kitchen utensils to new items such as sculptures and folk art. Despite the fame of the prior, the bulk of ceramic items produced in the country are floor and wall tiles along with bathroom fixtures. Mexico has a number of well-known artisan ceramic traditions, most of which are in the center and south of the country. Examples are the Talavera of Puebla, the majolica of Guanajuato, the various wares of the Guadalajara area, and barro negro of Oaxaca. A more recent addition is the production of Mata Ortiz or Pakimé wares in Chihuahua. While the number of artisans has been dropping due to completion from mass produced items, the production of folk art and fine ware still has an important role in the Mexican economy and the production of pottery in general is still important to Mexican culture.
The making of earthenware began to replace stone utensils in Mexico began around the Purrón period (2300-1500 B.C.E.). Many of these first ceramics were gourd or squash shaped, a carry over from when these vegetables were used to carry liquids. This earthenware developed into a pottery tradition which was mostly made in natural clay and thinly coated with a fine clay slip. Most clays in Mexico need temper to regulate water absorption, with one significant exception being the clay used in the Fine Orangeware of the Gulf Coast.
Pre-hispanic vessels were shaped by modeling, coiling or molding. Except for a proto wheel used by the Zapotecs, the potter’s wheel was unknown until the Spanish Conquest. Simple pinch pots or coiled pots were usually made by the family, with larger molded pieces made by craftsmen. The earliest molded pieces were simply clay pressed against a pre-existing bowl, but double molds and slip casting came to be use to make bowls with relief decorations. Famous examples of this type exist in Tlaxcala and Puebla states. Many figurines were also made using molds. Sometimes vessels were made with several molded pieces with the upper part finished by coiling.
With one exception, pre-Hispanic pieces were not glazed, but rather the finish was made with a slip made of extremely fine clay. This slip often had mineral pigments added for color, which could be added before and/or after firing. Firing was done in an open fire or in a pit. Figurines were often done in the family hearth. Pots were fired in a heap covered with wood which was done on the ground or in a pit. The use of this method for firing most often led to incompletely fired pots, with the notable exception of Fine Orangeware.
The only glazed ware from Mesoamerica is called Plumbate. It was glazed with a fine slip mixed with lead and fired by a special technique. It was produced only for a short time and its appearance marks the Early Post Classic period at many archeological sites.
There are over thirty known methods to have been used decorate pre-Hispanic pottery including pressing designs into the clay with textiles, use of rocker stamps, or pressing items such as shells and the use of pointed sticks. Various manners of putting and preserving colors both during and after firing were also employed. Designs generally fall into four categories: geometric, realistic or naturalistic (generally stylized animals and people), symbolic and pictographic. Most designs are related to designs on other crafts and on artistic works such as murals. All of these pottery styles and methods can still be found in modern Mexico.
The Spanish Conquest introduced European traditions of pottery and had severe effects upon native traditions. Some pottery forms survived intact, such as comals, grinders (molcajetes), basic cooking bowls/utensils and censers. This was mostly done in plain orangeware and some were colored red and black. All pre-Hispanic figurines, since they were almost always related to religion, disappeared and replaced by images of the Virgin Mary, angels, friars, soldiers, devils and European farm animals such as dogs, cattle and sheep. The major effect on production was the introduction of the potter’s wheel, the enclosed kiln, lead glazes and new forms such as candlesticks and olive jars. The importation of European and Asian ceramics mostly affected decoration styles of native produced wares. The impact of these was felt earliest and strongest in the central highlands on Mexico, in and around Mexico City. While some traditional pre-Hispanic style ware was still produced in the early colonial, its quality and aesthetics declined dramatically until it nearly disappeared entirely.
European style ware, especially glazed ware, produced by native craftsmen, began early in the colonial period but was poorly done with only two colors, green and amber. Most decorative elements were stamped on with mixed Spanish and indigenous designs. The most common forms were jugs, pitchers and bowls, all for everyday use. Over time, the production of majolica glazed ware, which was expensive to import from Europe, developed and regulated by the mid 17th century. The best was being produced in Puebla, although it was being also produced in Mexico City, Guadalajara, Aguascalientes and other places. These pieces were primarily had a white or cream colored background with designs painted on them in one or more colors. For the rest of the colonial period, indigenous styles continued to deteriorate all over New Spain, while foreign influences from Europe, Asia and the Middle East produced changes in decorations. By the time of the Mexican War of Independence, Mexican majolica was exported throughout the New World and drove the Spanish version from the market. However, this dominance would not last long before cheaper Delftware from England and Asian wares put pressure on the industry in the 19th century. Mexico continued to import and copy styles from France and England through the 20th century; however, there have been native innovations during the past century and a half as well.
Most pottery produced in central Mexico is fired at low temperatures (low-fire) and covered with a glaze made with lead and other minerals. This is because lead will fuse and produce a shine at a firing temperature of less than 800C, while alternatives require temperatures twice as high. The use of lead in these wares has produced health warning in both Mexico and the United States, with the risks being known as early as the late 19th century. Lead from the glaze tends to leach into foods after repeated use. Use of this type of ware has been linked to elevated blood levels in children in Mexico City, Oaxaca and other places and severely high levels in children of potters. The lead content is highest in Oaxacan pottery. This lead content has blocked most rurally produced ceramics from the United States market, where they could fetch much higher prices
In the 1990s, FONART, a government entity that promotes handcrafts and several non-governmental organizations worked to produce an alternative lead-free glaze what works with low-fire ceramics. This glaze is based on boron. They have also worked to get artisans to install $40USD fans in their kilns to make combustion more efficient. This has allowed a significant portion of low-fire ceramics to be stamped “lead free” and allows them to be exported.
However, researchers have found lead content in wares stamped “sin plomo” (without lead). Even though the boron glaze costs less than the traditional lead glaze, many potters refused to change tradition. In all, only half of Mexico’s potters have switched. In some places the problem is the lack of information about the glazes and in some places, artisans claim that they need government financial support, especially for options that warrant a gas-fired kiln. Another problem is that many do not trust the government and ignore warnings.
http://en.wikipedia.org/wiki/Mexican_pottery_and_ceramics
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