Pit fired pottery
Encyclopedia
Pit firing is the oldest known method for the firing of pottery
Pottery
Pottery is the material from which the potteryware is made, of which major types include earthenware, stoneware and porcelain. The place where such wares are made is also called a pottery . Pottery also refers to the art or craft of the potter or the manufacture of pottery...

. Examples have been dated as early as 29,000–25,000 BCE
Common Era
Common Era ,abbreviated as CE, is an alternative designation for the calendar era originally introduced by Dionysius Exiguus in the 6th century, traditionally identified with Anno Domini .Dates before the year 1 CE are indicated by the usage of BCE, short for Before the Common Era Common Era...

. Kilns have since replaced pit firing as the most widespread method of firing pottery, although the technique still finds limited use amongst certain studio potters.

Unfired pots are nestled together in a pit in the ground and are then covered with combustible materials such as wood shavings, leaves, metal oxides, salts, sawdust and dried manure
Manure
Manure is organic matter used as organic fertilizer in agriculture. Manures contribute to the fertility of the soil by adding organic matter and nutrients, such as nitrogen, that are trapped by bacteria in the soil...

. The top of the pit may be protected with moist clay, shards, larger pieces of wood or metal baffles. The filled pit is then set on fire and carefully tended until most of the inner fuel has been consumed. At around 1,100°C (2,000°F) the maximum temperatures are moderate compared to other techniques used for pottery. After cooling, pots are removed and cleaned to reveal patterns and colors left by ash and salt deposits. Pots may then be waxed and buffed to create a smooth glossy finish.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK