The invention relates to improved processes of producing ethanol from starch-containing material wherein saccharification and/or fermentation is done at a temperature below the initial gelatinization temperature in the presence of glucoamylase and alpha-amylase, and optionally a protease and/or a cellulolytic enzyme composition; wherein the fermenting organism is Saccharomyces cerevisiae MBG4851 (deposited under Accession No. V14/004037 at National Measurement Institute, Victoria, Australia) or a fermenting organism strain having properties that are about the same as that of Saccharomyces cerevisiae MBG4851, or a derivative of Saccharomyces strain V14/004037 having defining characteristics of strain V14/004037, and compositions comprising a Saccharomyces yeast strain of the invention and naturally occurring and/or non-naturally occurring components.