Abstract: The invention relates to a method for the production of a polyurea-thickened grease intermediate product, consisting of or comprising the following steps: a) Providing at least one first thickener precursor; b) Providing at least one second thickener precursor; c) Dosing the thickener precursors provided from step a) and b) into a mixing chamber, optionally additional addition of at least one additive; d) mixing the at least two thickener precursors and the optionally at least one further additive in the mixing chamber and reacting the two thickener precursors; e) obtaining at least one polyurea-thickened grease intermediate product, wherein in order to ensure cooling during the reaction in step d) at least one of the thickener precursors provided in step a) and b) and/or the at least one additive from step c) has a temperature in a range from 0° C. to less than 40° C., preferably in a range from 10° C. to less than 40° C.