OX POTS are made of high fired stoneware. The clay is hand thrown on the wheel, trimmed and decorated before firing in an electric kiln to 1000 degrees centigrade. The "bisque ware" remains porous so the glaze can be applied by dipping or pouring. It is mixed using a variety of recipes depending on the finish required. 
It is coloured and often layered for different effects. The dried piece is then fired again to 1240-1280 degrees in either a gas or electric kiln. The oxidising atmosphere of the electric kiln is required for bright colours while the reduction atmosphere of the gas kiln can produce more earthy tones and iron speckling.