Method for forming a ceramic tile by pressing a prepared ceramic powder material in a pressing apparatus, said ceramic powder material being obtained by dry milling of ceramic raw materials, the maximum dimension of the particles of said initial ceramic powder material being less than 75 μm, comprising the steps of: - wetting said ceramic powder material; - rolling said ceramic powder material such as to obtain agglomerates of said ceramic powder material; - applying a mechanical action to said ceramic powder material during said rolling,; characterised in that: said wetting comprising wetting up to a humidity value that is not greater than 11.5% humidity; said rolling and said applying a mechanical action occur in such a manner as to control the disaggregation of at least a part of said agglomerates to obtain a desired disaggregation and limit a maximum size of granules forming from said agglomerates, said rolling comprising rotating an agglomeration chamber of a mixing apparatus around its longitudinal axis in which said ceramic powder material is present, said rotating said agglomerating chamber occurring at a speed comprised between 15 rpm and 25 rpm; said applying a mechanical action comprising rotating a disaggregating element provided inside said agglomeration chamber, said rotating said disaggregating element occurring at a speed that is not less than 1500 rpm and said method further comprising - supplying continuously said mixing apparatus with said ceramic powder material and supplying continuously granules to the outlet of said mixing apparatus; - drying said granules up to a humidity value that is about the same as a compacting humidity value that is necessary for compacting by pressing said ceramic powder material to form said ceramic tile, said compacting humidity value being comprised between 3% and 8%. - wetting said ceramic powder material; - rolling said ceramic powder material such as to obtain agglomerates of said ceramic powder material; - applying a mechanical action to said ceramic powder material during said rolling,; said wetting comprising wetting up to a humidity value that is not greater than 11.5% humidity; said rolling and said applying a mechanical action occur in such a manner as to control the disaggregation of at least a part of said agglomerates to obtain a desired disaggregation and limit a maximum size of granules forming from said agglomerates, said rolling comprising rotating an agglomeration chamber of a mixing apparatus around its longitudinal axis in which said ceramic powder material is present, said rotating said agglomerating chamber occurring at a speed comprised between 15 rpm and 25 rpm; said applying a mechanical action comprising rotating a disaggregating element provided inside said agglomeration chamber, said rotating said disaggregating element occurring at a speed that is not less than 1500 rpm and said method further comprising - supplying continuously said mixing apparatus with said ceramic powder material and supplying continuously granules to the outlet of said mixing apparatus; - drying said granules up to a humidity value that is about the same as a compacting humidity value that is necessary for compacting by pressing said ceramic powder material to form said ceramic tile, said compacting humidity value being comprised between 3% and 8%.