A nicotine formulation for an aerosol-generating system is provided, the nicotine formulation including: one or more water-miscible polyhydric alcohols; one or more metal salts; and one or more organic acids, the nicotine formulation having a metal salt content of greater than or equal to about 0.5 percent by weight, the one or more metal salts being selected from the group consisting of metal benzoates, metal cinnamates, metal cycloheptanecarboxylates, metal levulinates, metal propanoates, metal stearates, and metal undecanoates, and the nicotine formulation having an organic acid content of between about 0.5 percent and about 4 percent by weight. An aerosol-generating article and an aerosol-generating system are also provided.

A heatable aerosol-generating article is provided, including an aerosol generating rod, the aerosol generating rod including a sheet for an aerosol-generating device, the sheet including: cellulosic material including cellulose powder, a weight ratio of cellulose powder to total cellulosic material in the sheet on a dry weight basis being greater than about 1:2; one or more nicotine salts; and at least one aerosol former, the sheet having an aerosol former content of at least 10% by weight on a dry weight basis, the sheet including no tobacco material, and a weight ratio of aerosol former to nicotine salt in the sheet on a dry weight basis being between and 3:1.

The present disclosure provides an aerosol generating component containing a substrate impregnated with one or more aerosol forming materials, the substrate including a cellulosic material substantially free of sulfur compounds, and further including one or more of a tobacco pulp, an aqueous tobacco extract, a filler, and a binder. Further provided is an aerosol delivery device including the aerosol generating component. Such devices utilize electrically generated heat or combustible ignition sources to heat the aerosol forming materials, providing an inhalable substance in the form of an aerosol.

Provided herein is a method of generating aerosol from an aerosol-generating substrate using an aerosol-generating device with at least one heat source disposed to heat, but not burn, the aerosol-generating substrate in use. The aerosol-generating substrate has first and second portions having substantially the same composition, and/or has first and second portions and there is no physical separation between the portions. The method includes heating the aerosol-generating substrate in the aerosol-generating device, so that a temperature profile of the first portion of the aerosol-generating substrate during heating is different from a temperature profile of the second portion of the aerosol-generating substrate.

The present disclosure provides an aerosol source member and an aerosol delivery device that includes an aerosol source member. The aerosol source member includes a segmented substrate portion that includes a first substrate segment and a second substrate segment. The first substrate segment includes a first aerosol former, the second substrate segment includes a second aerosol former different from the first aerosol former, and the second substrate segment is positioned between the first substrate segment and a downstream end of the aerosol source member. The first substrate segment and the second substrate segment are configured such that when heated by a heat source, the first substrate segment is heated to a first temperature and the second substrate segment is heated to a second temperature that is less than the first temperature.

An article (1) for forming an aerosol. The article (1) is insertable, in use, into a heating chamber of a device for generating an aerosol. The article (1) comprises an aerosol-forming substrate (2) and volume limiting means (3). The volume limiting means (3) is activated or activatable by a device for generating an aerosol to limit the volume of the article (1).

Methods of forming a foam including a tobacco ingredient containing agent and/or an inhalable agent, an aerosol forming agent, a foam stabilizing agent, and a foam forming agent are provided, along with a foam produced by the methods, and foams with a certain aeration, for example of at least 4 vol. % based on the total volume of the foam.

An article (1) for forming an aerosol, the article (1) comprising a cover layer (2) having a peripheral mould surface (20) which circumscribes a moulded aerosol-forming substrate (3). The article (1) is insertable, in use, into a heating chamber of a device for generating an aerosol. A method of manufacture of the article (1) is also provided.

There is provided a multi-segment component for an aerosol generating article, the multi-segment component including a combustible heat source having at least one shaped recess on an outer surface thereof; an aerosol-forming substrate downstream of the combustible heat source; a wrapper circumscribing the combustible heat source along at least part of a length of the combustible heat source; and an inorganic glue located between the combustible heat source and the wrapper, the inorganic glue at least partially filling the at least one shaped recess.

A heated aerosol-generating article is provided, including a plurality of components assembled in the form of a rod, the article having a mouth end and a distal end upstream from the mouth end, and the article further including a combustible heat-generating element disposed at the distal end of the article and configured to heat air drawn into the article, and a liquid aerosol-forming substrate disposed downstream of the combustible heat-generating element.