A suitable combination of emulsifiers generally produces good results for emulsion stability. This reinforces the interfacial membrane formed on the oil–water interface, because the molecular packing of emulsifiers becomes dense. Arima et al. reported that the combined system of P-1670 and P-170 (RYOTO™ Sugar Ester P-170; HLB 1) in a 20 wt% Palm Mid Fraction-water emulsion controlled the growth of the fat crystallization on the oil–water interface [16].