TECHNOLOGY FOCUS - BIOTECHNOLOGY - Preferred Component: The first hydrolysis mixture comprises 5-85, preferably 10 filter paper units (FPU) of lignocellulose-hydrolyzing enzyme. The first enzyme composition comprises cellulase. It further comprises xylanase and beta -glucosidase. The filtrate comprises 80% of the liquid from the first hydrolysis mixture. The filtrate comprises water and unabsorbed lignocellulose-hydrolyzing enzyme. It may comprise 10-20% cellulase. The second enzyme composition comprises xylanase and beta -glucosidase. It further comprises cellulase. The first enzyme composition comprises 25-50%, preferably 50% of the total cellulase dosage.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Component: The fermentable sugar mixture comprises 12 vol.% fermentable sugar. The alcohol mixture comprises 6 vol.% alcohol.    TECHNOLOGY FOCUS - POLYMERS - Preferred Component: The lignocellulosic biomass is herbaceous material, agricultural residues, forestry residues, municipal solid wastes, waste paper, pulp and/or paper mill residues. It is corn stover, straw, bagasse, Miscanthus, sorghum residue, switch grass, bamboo, water hyacinth, hardwood, hardwood chips, softwood chips, hardwood pulp, or softwood pulp. Preferred Method: The method further comprises pretreating the lignocellulosic biomass to increase enzymatic digestability. The pretreating step comprises removing or altering lignin, removing hemicellulose, decrystallizing cellulose, removing acetyl groups from hemicellulose, reducing the degree of polymerization of cellulose, increasing the pore volume of lignocellulose biomass, or increasing the surface area of lignocellulose. The pretreating comprises autohydrolysis, steam explosion, grinding, chopping, ball milling, compression milling, radiation, flow-through liquid hot water treatment, dilute acid treatment, concentrated acid treatment, peracetic acid treatment, supercritical carbon dioxide treatment, alkali treatment, organic solvent treatment, cellulose solvent treatment, or treatment with an aerobic fungi. The alkali treatment is sodium hydroxide treatment, lime treatment, wet oxidation, ammonia treatment, or oxidative alkali treatment. It is green liquor treatment. Contacting the lignocellulosic biomass with the first enzyme composition comprises mixing the lignocellulosic biomass with the first enzyme composition at 5% solids. The first period of time is 1-20, preferably 5-10 minutes. Contacting the lignocellulosic biomass with the first enzyme composition is performed at 4-70 degrees C. The contacting is performed at 38 degrees C and at a pH of 4.8. The thickening step comprises increasing the fiber concentration of the first hydrolysis mixture to provide a second hydrolysis mixture having 15-30% solids. The thickening step comprises filtering the first hydrolysis mixture to provide the second hydrolysis mixture and a filtrate. The filtering is performed by vacuum filtering the first hydrolysis mixture using a filter press. The second period of time is 1-3 days. Hydrolyzing the second hydrolysis mixture comprises hydrolyzing the second hydrolysis mixture for a first portion of the second period of time, adding a second enzyme composition to the second hydrolysis mixture to increase the enzyme dosage in the second hydrolysis mixture, and continuing hydrolysis of the second hydrolysis mixture for a second portion of the second period of time to provide the fermentable sugar mixture. The first portion of the second period of time is 0-24, preferably 2-3 hours. The second portion of the first period of time is 24-48 hours. Fermenting comprises fermenting the fermentable sugar mixture using a microorganism including yeast to provide an alcohol mixture and distilling the alcohol mixture to provide the alcohol. The method further comprises dehydrating the alcohol. EXAMPLE - Hardwood chips were pretreated with green liquor (12% or 16% total titratable alkali) at 160 degrees C, refined in a disc refiner and washed. The pretreated chips were then diluted with water to a fiber consistency of 5%, 7.5% or 10%. 20 Filter paper units (FPUs)/g wood was added and the mixtures allowed to hydrolyze for up to 48 hours. At 6, 12, 24, or 48 hours, the mixtures were analyzed for monomeric sugar content (glucose, xylose, and mannose). The amount of sugars produced was compared to the amount of sugar theoretically present based on analysis of the original wood polysaccharide content to determine the percentage of total sugar yield. The results showed that increasing the fiber consistency reduced the amount of sugar produced during enzymatic hydrolysis.