A mixing or dispersing element (1, 10, 30, 40, 50, 60, 70) includes a passage (2) in which an insertion element (3, 4. 33, 34) is arranged which contains a foam structure. A static mixing element (5, 6, 35, 36) for macro mixing or predispersing or macro dispersing is arranged in the passage (2) in addition to the insertion element (3, 4, 33, 34) for micro mixing or dispersing. Furthermore, a method is described of producing a dispersion using such a mixing or dispersing element.