The method for the lubrication of glass forming molds (3a,3b) with at least a nozzle (2) spraying a lubricating media in the molds comprises at least the following steps: displacement of a nozzle from a resting position to a working position into said mold (3a, 3b); movement of said nozzle in said mold while spraying with said nozzle a lubricating media to lubricate the inner surface of said mold; —) application of vacuum at least during the spraying step to evacuate emissions; —) once the mold has been lubricated, displacement of the nozzle in a resting position allowing the loading of a gob in said mold; —) circulation the lubrication media in the nozzle before and after the lubrication step to avoid stagnant lubrication media remaining in the nozzle and/or ensure constant mixing of solid particles in said media.