Cleaning of an injection molding tool

An injection molding tool for producing at least one molded part in a mold cavity, the injection molding tool comprising:

• at least two tool elements which are movable relative to one another between an open position and a closed position and which are in contact with one another so as to form at least one vent gap, wherein in the closed position the mold cavity is enclosed at least in sections by the at least two tool elements and the vent gap is connected to the mold cavity in such a way and has a cross section such that the vent gap permits venting of the mold cavity and prevents escape of a plasticized melt from the mold cavity and wherein in the open position a molded part produced in the mold cavity can be removed from the injection molding tool;
• and
• a cleaning structure the cleaning structure being arranged and configured such that a cleaning fluid can be routed via the cleaning structure into the at least one vent gap between the tool elements.