An aerosol-generating substrate for vaping includes a semi-solid substrate, wherein up to about 1.0% of the total weight percentage of the aerosol-generating substrate is comprised of one or more carboxylic acids dissolved in an alcohol solution. A method of manufacturing the aerosol-generating substrate and a use thereof in an aerosol-generating substrate for vaping are also provided.

A method of treating tobacco material with superheated steam to reduce the nicotine content of the tobacco material after the treatment compared to the nicotine content of the tobacco material before the treatment. Also provided is treated tobacco material which has been contacted with superheated steam to reduce its nicotine content, as well as the use of superheated steam to treat tobacco and tobacco industry products that include the treated tobacco material.

The invention relates to a multilayer reconstituted plant sheet suitable for devices which heat tobacco without burning it, said reconstituted plant sheet having a high density.

A method for preparing a tar extract with aroma characteristics from a discarded cigarette butt includes: (1) adding the discarded cigarette butt to an extraction solvent, and carrying out subcritical fluid extraction to obtain an extraction solution; (2) carrying out vacuum filtration on the extraction solution, and carrying out vacuum distillation on the filtrate to obtain a concentrated extractum; and (3) carrying out molecular distillation on the concentrated extractum, and collecting a light fraction of the molecular distillation to obtain the tar extract with aroma characteristics. Through the subcritical fluid extraction and separation by the molecular distillation to prepare the tar extract, harmful substances in the tar are removed, and the aroma components are retained. The tar extract is applied to a cigarette to improve the aroma, smoke and taste characteristics of the cigarette.

Compositions made from combinations including an hydrated ionic clay and a tobacco material are described herein. Methods of manufacture, as well as methods of extracting nicotine from these compositions are also described. The compositions can be used to prepare liquid vaporizable materials by extracting nicotine from tobacco material and directly from the tobacco material and into a liquid vaporizable material.

Compositions include an aqueous organic-based gellant system and nicotine or a salt thereof. The compositions are readily prepared and stored in cartridges or used directly in a device for delivering nicotine to a user.

A smokable product is an organolepticly homogenous smokable material comprising shredded hemp paper that has been treated with a solution of cannabinoids and terpenes, and a wrapping paper to hold the smokable material in a rolled form. A method includes grinding cannabis plants, removing terpenes and cannabinoids from the cannabis plants, leaving cannabis fibers, pulping the cannabis fibers to produce hemp paper, shredding the hemp paper to produce shredded paper, combining at least the terpenes and cannabinoids into a solution based upon a predetermined formula, spraying the shredded paper with the solution to produce smokable material, and rolling the smokable material into a cigarette.

A saturation sensor measures at least one electrical characteristic of the wick between the heating element and the probe wire at a first time and a second time, wherein the at least one electrical characteristic includes a resistance, a capacitance, or both a resistance and a capacitance. Control circuitry is configured to cause the nicotine e-vaping device to: calculate a refill rate at which the nicotine pre-vapor formulation flows onto the wick based on the at least one electrical characteristic at the first time and the at least one electrical characteristic at the second time; determine that the refill rate is less than a threshold refill rate; and output a low nicotine pre-vapor formulation alert in response to determining that the refill rate is less than the threshold refill rate.

The present disclosure provides approaches for reducing tobacco-specific nitrosamines (TSNAs) in tobacco. Some of these approaches include genetically engineering tobacco plants to increase one or more antioxidants, increase oxygen radicle absorbance capacity (ORAC), or reduce nitrite. Also provided are methods and compositions for producing modified tobacco plants and tobacco products therefrom comprising reduced TSNAs.

Provided herein, inter alia, are compositions including sol-gels and nicotine. The compositions are readily prepared and stored in cartridges or used directly in a device for delivering nicotine to a user.