A method for producing a flavouring substance-included cellulose, comprising the following steps: inclusion of one or more primary swelling agent(s) in cellulose; partial or complete replacement of included swelling agent by one, two, three, four, or more flavouring substances, with the proviso that the flavouring substances are not alkanoic acids with 1 to 4 C atoms, so that the flavouring substances are included in the cellulose, wherein (a) preferably swelling agent included in step is only partially replaced and the method additionally comprises following step: removal of included swelling agent not replaced by flavouring substances and/or wherein (b) the method optionally additionally comprises the following step: partial or complete replacement of included primary swelling agent by one or more secondary swelling agent(s), so that these are included in the cellulose, as well as subsequently optionally the step: (IIb) partial or complete replacement of secondary swelling agent included in cellulose by one or more further secondary swelling agent(s) as well as repetition of this step if necessary, wherein in step the cellulose is present in a mixture with hemicellulose and/or lignin, wherein - the proportion of hemicellulose with regard to the total weight of cellulose, hemicellulose and lignin is 0.001 to 80 wt.%, preferably 5 to 50 wt.%, particularly preferably 15 to 40 wt.%, and/or - the proportion of lignin with regard to the total weight of cellulose, hemicellulose and lignin is 0.01 to 10 wt.%, preferably 0.1 to 8 wt.% and particularly preferably 1 to 7 wt.%, wherein in case the method comprises step, the or one, several or all of the primary swelling agent(s), respectively, are selected from the group consisting of water, glycerine, propylene glycol, formic acid, ammonia, aqueous solution of metal hydroxides, in particular of sodium hydroxide and potassium hydroxide, and mixtures thereof; preferably from the group consisting of water, aqueous solutions of sodium hydroxide and aqueous solutions of potassium hydroxide, in case the method does not comprise step, the or one of the primary swelling agent(s), respectively, is acetic acid, wherein the or one, several or all of the secondary swelling agent(s), respectively, are selected from the group consisting of ethanol, propanol, butanol, butyric acid, propionic acid and mixtures thereof, preferably from the group consisting of ethanol and propanol, and wherein preferably the or one, several or all of the primary swelling agent(s) and/or of the secondary swelling agent(s), respectively, have a higher vapour pressure than the or one, several or all of the flavouring substances used in step. inclusion of one or more primary swelling agent(s) in cellulose; partial or complete replacement of included swelling agent by one, two, three, four, or more flavouring substances, with the proviso that the flavouring substances are not alkanoic acids with 1 to 4 C atoms, removal of included swelling agent not replaced by flavouring substances and/or partial or complete replacement of included primary swelling agent by one or more secondary swelling agent(s), so that these are included in the cellulose, (IIb) partial or complete replacement of secondary swelling agent included in cellulose by one or more further secondary swelling agent(s) - the proportion of hemicellulose with regard to the total weight of cellulose, hemicellulose and lignin is 0.001 to 80 wt.%, preferably 5 to 50 wt.%, particularly preferably 15 to 40 wt.%, and/or - the proportion of lignin with regard to the total weight of cellulose, hemicellulose and lignin is 0.01 to 10 wt.%, preferably 0.1 to 8 wt.% and particularly preferably 1 to 7 wt.%,