A component for an aerosol-generating apparatus comprises a liquid container for containing liquid, a wick arranged to draw liquid from the liquid container in use; and a heater arranged to volatilise liquid drawn from the liquid container by the wick in use to generate an aerosol in use. The heater defines a channel for receiving a material element for modifying a property of the aerosol generated in use. The component is arranged such that, in use, the material element received in the channel in use modifies a property of the aerosol generated in use thereby to generate a modified aerosol for inhalation by a user.