NOVELTY - Producing and recovering one or more fermentation end-products, comprises: (a) providing a fermenter comprising a slurry having a biomass and one or more microorganisms, where the microorganisms can hydrolyze and/or ferment the biomass to produce the fermentation end-products; (b) sparging the slurry with a gas, where the gas provides low shear mixing of the slurry, and a portion of at least one of the fermentation end-products evaporates into the gas; and (c) recovering the fermentation end-products from the gas.    USE - The method is useful for producing and recovering one or more fermentation end-products, such as alcohols, preferably ethanol, methanol, propanol and/or butanol (all claimed).    ADVANTAGE - The method provides fermentation end-products with high yield (at least 20, (preferably 100) g/l or more) in an economical manner.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a low shear rate method for producing fermentation end-products, comprising directing a gas through a slurry comprising biomass with a C. phytofermentans biofilm, where the gas extracts a portion of at least one of the fermentation end-product from the slurry, and isolating the fermentation end-products from the gas vapor; (2) a system for producing and recovering the fermentation end-products, comprising (i) a fermenter configured to house a slurry, where the slurry comprises a biomass, and the microorganisms, (ii) a gas distribution member in fluid contact with the slurry in the fermenter, where the gas distribution member sparges a gas through the slurry, and the gas causes low shear mixing of the slurry, and (iii) a condenser, where the gas comprising the portion of the fermentation end-products is cooled such that a condensate is formed comprising the fermentation end-products; and (3) continuous production of one or more fermentation end-products, comprising forming the slurry, directing the gas through the slurry, separating the gas comprising the portion of the fermentation end-products from the slurry, and recovering the fermentation end-products from the gas.