The porcelain (with the exception of flat china) is dipped by hand into a basin filled with glaze. The desired strength and distribution of the glaze coat is achieved by the body's absorbing capacity and the defined dipping time.  If an item's design calls for unglazed sections (biscuit), then they are covered carefully by hand with wax or a special lacquer prior to glazing. The protective layer is then burnt off in the furnace during firing.

The glaze adheres solidly and transparently to the body during the subsequent firing, called the Gut- or Glattbrand (glost firing), which comes after glazing.  During this firing, at approximately 1420° C, the porcelain piece sinters and the body shrinks to the dimension of the original maquette. After it has been fired, the porcelain also gains its final physical properties. One of the many distinctive features of KPM porcelain is, for instance, the production of cups with glazed rims. To achieve this, the cup is glazed once again before the second glost firing. The glost firing cycle takes roughly 19 hours. Complicated porcelain pieces susceptible to cracking are fired for 55 hours. After firing, the bottoms of all porcelain pieces are cut smooth in the grinding shop.