The present invention relates to a process for producing portioned washing or cleaning compositions, comprising the following steps: a) deforming a water-soluble material to form a vessel having at least one orifice, an edge surrounding this orifice and at least one further corner and/or edge; b) introducing a washing- or cleaning-active melt and solidifying the melt; c) filling the vessel with at least one further washing or cleaning composition; and d) finishing the filled vessel, characterized in that the vessel formed in step a) is filled in step b) with the melt in such a way that at least the further corner(s) and/or edge(s) of the vessel is/are filled at least partly by the solidified melt. The process enables stable and deformation-resistant portioned washing or cleaning compositions to be obtained.