An aerosol-generating system, a cartridge (200) for an aerosol- generating system, an atomiser (300) for an aerosol-generating system and a method of generating an aerosol using the aerosol- generating system, wherein the system comprises a liquid-storage portion (201) comprising a housing for holding a liquid aerosol- forming substrate; heating means arranged to heat liquid aerosol- forming substrate; a vibratable element (301) comprising a plurality of passages (303) through which heated liquid aerosol-forming substrate passes to form an aerosol; and an actuator (302) arranged to vibrate the vibratable element (301) to generate the aerosol.