Creating clay returns not only ten clay but a (now empty) bucket.
In version 1.0, the press only had one level with the appearance of what is now the level one press. It could only craft oil, green coffee beans, and the pigments. In version 1.1, the ability to craft clay was added. In version 1.2, crafting tin foil was added, while crafting clay and four of the pigments were moved to the newly-added level two. In version 1.4, crafting crushed limestone, iron ore, and black sand was added.