NOVELTY - Producing a saccharification product from a pretreated biomass composition, comprises spraying a liquid comprising one or more saccharification enzymes onto the pretreated biomass composition to form an impregnated biomass composition, and maintaining the impregnated biomass composition under suitable conditions to promote hydrolysis of components in the impregnated biomass composition to produce the saccharification product.    USE - The method is useful for producing a saccharification product from a pretreated biomass.    ADVANTAGE - The method provides saccharification product with high productivity, and with reduced capital cost, operation cost, and energy consumption.    DETAILED DESCRIPTION - Producing a saccharification product from a pretreated biomass composition, comprises: either spraying a liquid comprising one or more saccharification enzymes onto the pretreated biomass composition to form an impregnated biomass composition, and maintaining the impregnated biomass composition under suitable conditions to promote hydrolysis of components in the impregnated biomass composition to produce the saccharification product; or separating the prehydrolysate from the pretreated biomass solids to form a first prehydrolysate liquid, adding one or more saccharification enzymes to the first prehydrolysate liquid to form a second prehydrolysate liquid, spraying the second prehydrolysate liquid onto the pretreated biomass solids to form an impregnated biomass composition, and maintaining the impregnated biomass composition under suitable conditions to promote enzymatic hydrolysis of the impregnated biomass to produce the saccharification product. INDEPENDENT CLAIMS are included for: method-I of producing a fermentation product from a pretreated biomass composition comprising a prehydrolysate and pretreated biomass solids, comprising separating the prehydrolysate from the pretreated biomass solids to form a first prehydrolysate liquid, adding one or more saccharification enzymes and one or more fermentation organisms to the first prehydrolysate liquid to form a second prehydrolysate liquid, spraying the second prehydrolysate liquid onto the pretreated biomass solids to form an impregnated biomass composition, and maintaining the impregnated biomass composition under suitable conditions to promote enzymatic hydrolysis of the impregnated biomass composition and fermentation of the saccharification product to form the fermentation product.