Today’s need to produce good quality beer in a short time and in the least expensive way has prompted many breweries to use high gravity (HG) brewing for the production of clear lager beers [8]. The technique involves fermentation of media with higher than 12% dissolved solid contents, usually 16–18% dissolved solids [9,10]. Higher levels of ethanol are produced per given plant capacity and labour costs. Advantages cited for using this technology include increased production, significant savings in energy, the possibility of using a higher proportion of adjuncts and the production of a more stable beer [8]. To the best knowledge of the
authors, there are no reports of the application of HG fermentation technology to the brewing of opaque beer. Potential, therefore, lies in the application of HG technology in the brewing of opaque beer, both traditionally and commercially. The aims of this study were to determine the biochemical effects of applying HG technology to the brewing of traditional opaque beer using
various combinations of cereal meals and malts.