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Pottery techniques such as coiling and wheel-throwing have been —practisedpractisingpracticepractises for thousands of years across many cultures. A potter must knead the clay thoroughly to —removeremovedremovingremoves air bubbles that could crack the piece during firing. Once shaped, the vessel is left to dry —slowlyslowslownessslower before being fired in a kiln at high temperature. Glazes are then applied to make the surface —waterproofwaterproofingwaterproofedwaterproofs and decorative.