Zama pottery is a traditional art from the high mountains of Spiti Valley. Originally used for practical purposes, like storing items, it has evolved into a decorative craft. Dorje Angtuk from Langza village is one of the few potters who still practices this nearly forgotten art.
In Langza, the clay is ideal for making large pots because it's very pliable and strong. Black clay is gathered from the mountains and mixed with water. After filtering through a local sieve called a 'channi', the clay settles in layers, with the water being removed. The clay is refined further on a porous sheet, then beaten by hand to soften it. Using basic tools made from wood, leather, and stone, the clay is shaped by hand into the desired form. Layers of clay are added on top of a base to achieve the final shape. The pottery is dried in the sun before being fired in a kiln at about 900 °C. Apart from the Zama technique, potters also use a potter's wheel for shaping their pots.
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https://www.dsource.in/resource/zama-pottery-spiti-valley