NOVELTY - Method (M1) for producing at least one volatile organic compound, comprises: (a) generating at least 10 tons of prepared biomass material (1) comprising at least one additive that is added to a solid biomass comprising a sugar; (b) storing prepared biomass material for at least 24 hours in a storage facility for allowing production of volatile organic compound from at least a portion of sugar; and (c) capturing volatile organic compound by feeding stored biomass material to solventless recovery system to separate stored biomass material into at least a gas component and a solid component (7).    USE - The method is useful for producing volatile organic compound e.g. ethanol (claimed), methanol, acetic acid, 2,3-pentanedione, butyric acid, isobutyric acid, hexanoic acid or decanoic acid.    ADVANTAGE - The method: utilizes the biomass material that is capable of being stored for 700 days without significant degradation of the volatile organic compound (claimed); provides efficient and economical production and recovery of ethanol or other volatile organic compounds, on a larger scale; reduces or eliminates the need for expensive equipment as compared to conventional methods; allows the fermentation in conjunction with product storage; eliminates or minimizes the need for just-in-time harvesting, thus allowing year-round ethanol production regardless of the harvest window of the sugar crop; eliminates or minimizes down time of a recovery plant in conventional just-in-time harvest and recovery processes; and is robust.    DETAILED DESCRIPTION - Method (M1) for producing at least one volatile organic compound, comprises: (a) generating at least 10 tons of prepared biomass material (1) comprising at least one additive that is added to a solid biomass comprising a sugar, where the additive comprises a microbe, and optionally an acid and/or an enzyme; (b) storing the prepared biomass material for at least 24 hours in a storage facility for allowing the production of the volatile organic compound from at least a portion of the sugar; and (c) capturing the volatile organic compound by feeding the stored biomass material to a solventless recovery system to separate the stored biomass material into at least a gas component comprising the volatile organic compound and a solid component (7). An INDEPENDENT CLAIM is also included for a method (M2) for producing a storable wet biomass containing volatile organic compounds, comprising: adding the additive to at least 10 tons of the solid biomass to generate the prepared biomass material, where the solid biomass comprises a sugar-producing plant; and allowing conversion of at least a portion of the sugar in the prepared biomass material into the volatile organic compound, where the biomass material is capable of being stored for 700 days without significant degradation of the volatile organic compound.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of the volatile organic compound recovery system.    Prepared biomass material (1)    Input (2)    Solid component (7)    System fan (14)    Superheated steam dryer (100)