This was the main objective of the study that whole the product, lying throughout the length of drying chamber, should come at same drying level with minimum variation at the end of drying time.
The drying material in all the buckets was being exposed to incoming warm air at same time, so it facilitated the occurrence of almost uniform drying.
For each set of drying data, sigmoid logistic model was found best for curve fitting with high R2 value using sigmaplot-12 as shown in Fig. 6.