Two-stage acetone fractionation of palm stearin was performed as shown in Fig. 1. The fractionation was performed in a flat-bottom glass vessel (8 cm × 3.5 cm i.d.) equipped with a water jacket for temperature control. For the first fractionation, palm stearin (5 g) and acetone were loaded in the vessel. The vessel was heated to 45 °C using a water circulator to completely melt the palm stearin in acetone prior to starting the fractionation. The fractionation was carried out while agitating the palm stearin with a magnetic stirrer at 300 rpm at desired temperatures for specific time intervals. After the fractionation, the liquid and solid phases were separated by vacuum-filtration in a Buchner funnel with Whatman filter paper no. 41. The liquid fraction was dried in a rotary vacuum evaporator and then completely dried under a nitrogen flush. The acetone remaining in the solid phase was also removed by nitrogen flushing. The best conditions for the temperature, volume-to-weight ratio of acetone to palm stearin and crystallization time were established by considering the yields and PPP and SMUT contents of the fractions. The liquid fraction (5 g) obtained in the first fractionation, which was performed under the best conditions established, was used for the second fractionation. The process was done in the same manner as the first fractionation. The best temperature was established by considering the yields and SMUT contents of the fractions. Then, a large-scale fractionation of palm stearin (50 g) was performed under the most suitable conditions established for the small-scale process described above in a flat-bottom glass vessel (11 cm × 10 cm i.d.). The solid and liquid fractions obtained under the best conditions for the fractionation (first step) of palm stearin were designated PS-SF and PS-LF, respectively. Similarly, two fractions produced under the most suitable conditions for the fractionation (second step) of PS-LF were designated PS-LF-SF (for the solid fraction) and PS-LF-LF (for the liquid fraction), respectively. The fractions produced in the large-scale fractionation were used for analyzing their chemical compositions, solid fat contents, and melting and crystallization properties.