Fig. 2 shows evolution of the emulsion structure studied by the MLS method during the storage at 25 ± 1◦C. In the all systems prepared with PW, a slight decrease in the intensity of the backscattered light (BS) was observed during 90 days. The lowest values of BS was observed for the higher dispersed-water contents (20 and 30 wt%). A decrease in the total BS intensity usually indicate changes in particle size. Possibly, the decrease was caused by sintering between excess wax particles in the continuous oil phase at higher concentrations. The PW crystals associated with the drop interfaces and formed in the continuous phase (which immobilized the droplets and prevented sedimentation), has been shown in Fig. 3. The micro graphs show needle-like (Fig. 3c) but also larger PW crystal structures, probably formed during re-association process under quiescent conditions (Fig. 3b). Rousseau and coworkers[6] observed a significant increase in the solid wax content (SWC)in emulsions with paraffin wax and different water fraction. They assumed continued wax solidification in their systems caused by a composition-driven diffusive transport gradient [15] compounded by Ostwald ripening of the paraffin crystals, where larger crystals grew at the expense of smaller crystals [16].