Robert produces molded ceramics, which he then manually carves. At the beginning of the process, the model of the product itself is formed and then the reproduction device from which the gypsum molds are cast. The liquid clay is poured into these. Then, the product is removed from the mold, followed by the first firing, the so-called bisque firing set to 850 ° C. The next step is glazing and the second firing, the so-called gloss firing, which is set to 1100 ° C. Light clay stoneware and red terracotta are the main materials used.