For more than 40 years, the Ceramic Industry has been based in Lampang. The process by which progression was measured took quite a long time to evolve. In the beginning, the production was done completely by hand. Today, that is no longer so.
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There are five main steps in the manual production process, as follows:
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- Preparation , including Clay Fermentation, Clay Kneading
- Molding
- Making up that can be separated into 3 kinds: Scratching, Fretwork, and Molding with liquid clay.
- Drying: Natural drying takes 15-30 days in Summer and more than 30 days in Rainy Season.
- Firing: It can be separated into 3 levels of fire: Low Fire (200-300ºC), Middle Fire (300-900ºC), High Fire (900-1,300ºC). After the pottery has been sufficiently air-dried, it will be fired in a kiln using the traditional firewood method. A three-step firing method is applied starting with a low firing of 400ºC for 12 hours, followed by a 900ºC setting for another six hours, and then a 1000ºC setting for another six hours to achieve an antique finish. If the buyer requires a dark red finish, the final stage of firing will be increased to 1280 ºC.
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