I have only used my moon press for shampoo bars. My first attempt was so much of a disaster that I almost put the mold in the trash. Before using it the second time, someone suggested using plastic wrap in the mold, adding the mixed ingredients a little bit at a time and then pressing down on a hard surface. That gave me pretty much perfect little shampoo bars. The third time I used a slightly different design in the mold and as the bar came out it tore the plastic wrap. I think that was due to the different design. But they still came out pretty and usable.