TREATMENT OF TOBACCO MATERIAL

摘要

A method is provided which comprises treating a tobacco material with an aqueous medium, wherein treating the tobacco material with aqueous medium includes the use of an aqueous medium : tobacco material ratio which is greater than or equal to 10 : 1 by weight, and/or adding an aqueous medium to the tobacco material multiple times, optionally in combination with at least one of: the aqueous medium having an alkaline p H; the aqueous medium comprising a surfactant; the aqueous medium having a temperature higher than ambient temperature; and the tobacco material being treated with aqueous medium for longer than or equal to two hours. Also provided is a tobacco material which has been treated by such a method, or a derivative thereof, and a smoking article which comprises a tobacco material treated by such a method.