Water loss, Y1 Solute gain,Y2 β p-value β p-value Constant 8.64   2.7   Linear         Temperature 1.48 0.0002* 0.83 0.0005* Concentration 4.04 <0.0001* 1.84 <0.0001* Time 2.56 <0.0001* 0.99 0.0001* Quadratic         Temp×temp 1.32 0.0029* 0.55 0.0204* Conc×Conc 0.35 0.2750 -0.40 0.0668 Time ×time -0.37 0.2544 -0.14 0.4872 Interaction         Temp×Conc 0.79 0.0350* 0.38 0.0853 Temp ×Time 0.29 0.3661 -0.17 0.3892 Conc×Time 1.69 0.0009* 1.48 0.0001* Lack of fit   0.0518   0.2866 R2 0.97   0.95

Table 3: The coefficients of the model with their respective β value, p-value and r2 value.