Method for producing ceramic tiles

A method for producing ceramic tiles, comprising the steps of providing a ceramic mixture, forming a raw tile with a body having an upper surface based on said mixture, and firing said raw tile to produce said ceramic tile, wherein the method comprises a step of producing a relief structure on said upper surface and wherein said relief structure is produced by spraying a fluid on to said upper surface after said forming step and before said firing step, wherein said relief is formed by printing water on the surface of the raw tile according to a pattern to soften portions of the surface of the raw tile, wherein said relief is further formed by erosion of the upper surface by removing said softened portion by spraying the fluid, wherein the fluid comprises compressed air, through a plurality of nozzles, wherein said nozzles are positioned in at least one array, wherein said nozzles in said array are aligned with each other in a direction substantially transverse to a direction of advance of the raw tile, and wherein said nozzles are digitally controlled.