pottery(unglazed earthenware) 1 페이지

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pottery(unglazed earthenware)

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    • It refers to clay bowls made of clay.
      Broadly includes both glazed and non-glazed earthenware, but strictly speaking, it refers to non-glazed earthenwares, that is, a 600-800℃ degree fired raw bowls without lye. During firing, when the flames of the kiln are in strong, a lot of brush branches are put in all at once and the chimneys and the arches are blocked. This process makes the bowl color turn dark gray. These bowls are also called Geomeogi. Red clay bowls, on the other hand, are oxidized and altered to allow the wind and fire to enter naturally.

      There are no rapid changes in the shape of the earthenware, but the types and malformations of the earthenware differed little by little, depending on the times and uses. As a result of various uses, such as food storage, fermentation, heating, and transportation, the number of models has increased relative to that of celadon and white porcelain. Depending on the application, the earthenware can be classified into storage, agricultural, household, and other tools.

      1. Storage equipment includes rice jar, water jar, salted jar, candle bottle and jungduri.
      2. Kitchen utensils can be subdivided into cooking containers, heat-resistant containers, and other containers. Cooking containers include siru, sojutgori, ddeoksal, chetdori, jodae, soraegi, hamji, chaeban and yinambak. Heat-resistant containers include sot, yaktanggi, tugari, hwaro and pungro. Other kitchen utensils include a water basin, muldongyi, baptong, jongbal, seasoning jar, lid jar, hangari, spoon case and bottles.
      3. The farming tools include Ojumjanggun, Ddongjanggun, Somaegudengyi, Gyuiddaedongyi and seeds case.
      4. The household utensils include iron stand, ashtray, wine bottle, muljanggun, jara bottle, turtle water bottle, byeoru, brush barrel, jomdori and basin.
      5. Other tools include building materials, such as chimneys, giwa, yongdu, miscellaneous goods, and jeoltong bottle and potted plants, gwansoldok, muneodanji, and hyangro.

      The use of earthenware over a long period of time has been based on the experience of using it in its own way.

      1. Breathable airflow, in other words, the action of breathing itself.
      The earthenware is not porous because of the sand in the soil, and it is a porous state with fine pores, which can allow air to pass in and out of it. Therefore, storing grains or seeds in clay pots and jars, etc., less forms insects, food content is not easily deteriorated and can be stored for a long time.

      2. Has a cleaning action.
      Clay pots get coated with soot, a carbon particle, during firing, which promotes a preservative effect or cleansing effect. In addition, when drinking water is placed in a water jar or a basin, the impurities in the water are absorbed by the wall and filtered.

      3. Has water absorption so it can control moisture control.
      Because the earthenware is baked at low temperatures and is porous compared to ceramics, the food inside the bowl retains its taste. In other words, the rice cake should be cooked in clay steaming pot in order to control the water content to give the unique taste of rice cake. Rice should be stored in clay rice bowls so that the shine and stickiness persist and does not lose its taste all day. For water jars storing drinking water, it sucks moisture into the wall, vaporizes it out of the body, and loses the heat of vaporization, so the water is cool and does not change for a long time.

      4. It is fire resistant, so it doesn't easily burn out and keeps up well. In addition, the heat content is large, the heat transfer coefficient is small, and the fire is long and the thermal conductivity is low.
      The clay earthenware is made of colored clay in its natural state, because the grains of sand, a component of quartz, increase the fire resistance. Using these characteristics, they make pottery braziers, medicinal herbs bowls, and soup bowls (tugari).

      5. When it is damaged, turns back easily into natural soil.
      Porcelain bowls are often difficult to return to the soil when broken, leaving them as waste that pollutes the environment. But the earthenware bowl is an environmentally friendly bowl that is easily broken into pieces and returned to the soil.

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