A method of producing a liquid tobacco extract is provided, the method including the steps of: preparing a tobacco material; heating the tobacco material in an extraction chamber at an extraction temperature of between 120 degrees Celsius and 160 degrees Celsius for at least 90 minutes; spraying atomised water into the extraction chamber during the heating step; collecting volatile compounds released from the tobacco material during the heating step; and forming a liquid tobacco extract comprising the collected volatile compounds. A liquid tobacco extract produced by the method is also provided.

A method of producing a liquid tobacco extract is provided, the method including the steps of: preparing a tobacco material; heating the tobacco material in an extraction chamber at an extraction temperature of between 120 degrees Celsius and 160 degrees Celsius for at least 90 minutes; spraying atomised water into the extraction chamber during the heating step; collecting volatile compounds released from the tobacco material during the heating step; and forming a liquid tobacco extract comprising the collected volatile compounds. A liquid tobacco extract produced by the method is also provided.

There is provided a method of making a product containing pasteurised fme cut tobacco for combustible use. The method comprises arranging fme cut tobacco (1) comprising elongate strips of tobacco having a cut width of less than 0.5 mm and a moisture content of at least 18 percent by weight, and heating the fme cut tobacco (1) such that the tobacco is pasteurised. Further, there is provided a product containing pasteurised fme cut tobacco (1) for combustible use. The product comprises a closed package (2); and pasteurised fme cut tobacco (1) within the closed package (2), the pasteurised fme cut tobacco (1) having a cut width of less than 0.5 mm and a moisture content of at least 18 percent by weight, and a colony forming unit (CFU) value of less than 2 log lo colony forming units per gram.

This cartridge is provided with a flavor source housing which houses a flavor source, and a mesh body which is arranged on at least one end of the flavor source housing. The mesh body has multiple openings. Each of the openings has a polygonal shape with interior angles of less than or equal to 180. As lengths that pass through the center of gravity of each opening, each opening has a minimum length that is shortest and a maximum length that is longest. The minimum length is less than the smallest size of the raw material pieces, and the maximum length is greater than the minimum length.

A smokeless tobacco product for insertion into the mouth of a user is provided herein. The smokeless tobacco product can be prepared by impregnating a tobacco-containing nonwoven fabric with a second tobacco material, e.g., using at least one alternating electric field. The obtained impregnated tobacco-containing fabric is subsequently bonded to form a composite, which can be further modified in order to obtain desired properties such as moisture content and flavor profile.

A smokeless tobacco product for insertion into the mouth of a user is provided herein. The smokeless tobacco product can be prepared by impregnating a tobacco-containing nonwoven fabric with a second tobacco material, e.g., using at least one alternating electric field. The obtained impregnated tobacco-containing fabric is subsequently bonded to form a composite, which can be further modified in order to obtain desired properties such as moisture content and flavor profile.

This invention relates to a method for preparing expanded tobacco stems, characterized in that the method contains steps as follows: purification, stem expansion, hypoxia heat retention (hypoxia heat retention refers to heating the expanded stems at hypoxia environment and maintaining the temperature), natural stacking, sorting, and packaging. An expanded tobacco stem product prepared according to this method has uniform size and color. Taste is modest and plain when it is combusted, which does not affect the original taste flavour. Expansion volume, the ratio of the expanded stems to the total stems, and quality are stable, which can be used as adsorption material. More important, expanded tobacco stems made from stems of different origin, texture and year according to this method have uniform odor component, which can not be acquired by other expansion technologies. This technology has met the requirement for product fabrication.

This invention relates to a method for preparing expanded tobacco stems, characterized in that the method contains steps as follows: purification, stem expansion, hypoxia heat retention (hypoxia heat retention refers to heating the expanded stems at hypoxia environment and maintaining the temperature), natural stacking, sorting, and packaging. An expanded tobacco stem product prepared according to this method has uniform size and color. Taste is modest and plain when it is combusted, which does not affect the original taste flavour. Expansion volume, the ratio of the expanded stems to the total stems, and quality are stable, which can be used as adsorption material. More important, expanded tobacco stems made from stems of different origin, texture and year according to this method have uniform odor component, which can not be acquired by other expansion technologies. This technology has met the requirement for product fabrication.

A method of making an aerosol-generating article containing an aerosol-generating component is described. The aerosol-generating article produces an inhalable aerosol upon heating but not burning the aerosol-generating article. The method can include providing a tobacco composition, applying a pulsed electric field to the tobacco composition to thereby provide a treated tobacco composition, combining the treated tobacco composition with aerosol-generating agent to provide an aerosol-generating component comprising greater than or equal to 8% aerosol-generating agent by weight of the aerosol-generating component and forming the aerosol-generating article to include the aerosol-generating component. The pulsed electric field applied to the tobacco composition can, for instance, have a field strength of greater than or equal to about 100 V/cm and a pulse frequency of greater than or equal to about 20 Hz.

A method of making an aerosol-generating article containing an aerosol-generating component is described. The aerosol-generating article produces an inhalable aerosol upon heating but not burning the aerosol-generating article. The method can include providing a tobacco composition, applying a pulsed electric field to the tobacco composition to thereby provide a treated tobacco composition, combining the treated tobacco composition with aerosol-generating agent to provide an aerosol-generating component comprising greater than or equal to 8% aerosol-generating agent by weight of the aerosol-generating component and forming the aerosol-generating article to include the aerosol-generating component. The pulsed electric field applied to the tobacco composition can, for instance, have a field strength of greater than or equal to about 100 V/cm and a pulse frequency of greater than or equal to about 20 Hz.