The most common agglomeration process in iron and steelmaking is sintering. The process requires the use of iron oxide ores or concentrate mixtures, limestone and dolomite as fluxes and coke as fuel in order to produce the required melt at elevated temperatures to cause permanent bonding of particles. Prior to sintering, granulation of the mixed feed is required to effectively cause temporal bonding of fines into granules of high strength, desired size uniformity, bed porosity and permeability for efficient sintering operation. However, since the granulation of iron oxide ores as a sinter feed does not require the use of binders, the added moisture is crucial in bonding the adhering fines to the nuclei particles. Consequently, considerable efforts of conducting several granulation studies at varied moisture contents have been made to establish the optimum granulation moisture for each feed mixture. The present study was conducted to determine the granulation performance of different types of iron oxide ores based upon their moisture saturation capacities and using standard granulation methods. The influence of moisture and moisture saturation capacity on the granulation of all the iron oxide ores were analysed, and the results comprising the estimated granulation moisture contents, compared with those reported for conventional laborious granulation studies. It is shown that although the conventional granulation generates optimum results that are superior to the granulation using the estimated moisture content, the results are close enough for consideration when dealing with sinter feed blends with moderate moisture saturation capacity in the range 16 26 wt.% and low porosity (< 40 wt.%). CITATION:Adam, M, Addai-Mensah, J, Begelhole, J and Skinner, W, 2019. The determination of optimum granulation moisture of iron oxide ore blends using their moisture saturation capacities, in Proceedings Iron Ore 2019, pp 3748 (The Australasian Institute of Mining and Metallurgy: Melbourne).