Seven diffent materials found in the nature, such as quartz, kaolin, chalk and sand are milled. Water and mud are mixed until they are consistent. Desired objects are shapped by cutting pieces from prepared dough they are left to dry. Pieces that reach leather harness from dough consistency are lined. The lining process allows dried objects to turn into a pure white color. The white background is the most important feature that separates Turkish tiles from other ceramics. Then the parts that are lined are cooked slowly for almost a day in an oven that is approximetely 900 0 C. This process is called biscuits of first cooking. The desired patterns are drawn with cobalt or Indian ink and inside of the patterns are painted with desired colors.
It is covered with a galssy glaze and second cooking is done. Pieces are taken one by one so as not to touch each other and smilar parts are put on the rack of the oven. Slowly baked tiles are also cooled very slowly to avoid being broken by sudden shock. Tile art works on three main items: vases, plates and tile wall panels. Turkish tile art goes back to the Karahan Dynasty. It shows that tile art has history of more than a thousand years. Turks used the often in architectural decoration.