Weight loss (WL) in the purple sweet potatoes that were undergone for osmotic process are shown in Figure 1. WL of sweet purple potatoes are increased with the increased concentration of sucrose and CaCl2 chloride during the osmotic process. The lowest weight WL (12.03%) was found in the potato samples which were treated with 40% sucrose solution. The highest WL was found in potatoes that were treated with 50 and 60% sucrose solution with 4% CaCl2 and the values were 18.44 and 18.65%, respectively. The combination of sucrose and salt infused osmotic solution was effectively reduced the weight in the potatoes as compared to the sucrose solutions that without CaCl2 infused. Overall, the highest concentration of sucrose and CaCl2 were significantly removed weight in the potatoes as compared with the other treatments. An increase of WL in potatoes could be the antagonistic effect of combination of different solutes (Park et al., 2002). This is an accordance with the presence study where the increasing of sucrose-CaCl2 concentration was effectively increased the WL. Sacchetti et al. (2001) reported that addition of salt in the sucrose ternary solution could increase the chemical potentiality of the solution and as a result deeper penetration into the commodity cell and causing the reduction of osmotic pressure gradients and as a result, increased of WL.