An increase of WL in potatoes could be the antagonistic effect of combination of different solutes such as sugar and salts (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 was found in the potato samples.