Compared to the newly developed prototype system, the use of existing mechanized drying systems entail higher costs. In Nueva Ecija, the cost of using a mechanical dryer is PhP 55.00 per 50-kg bag excluding the transport and hauling costs. Farmers with flat bed dryers hire at least two (2) workers who would operate the tractor for hauling and another one for operating the dryer, increasing the production cost. The cost of drying (including handling) using the prototype system is lower than other existing practices except sun drying.

Building the developed prototype system requires much technical knowledge on the use of the equipment. The drying bags are supported by galvanized iron and are assisted by a carrier as it moves the bag to the air heating and drying component. The heat coming from the drying equipment is generated by a continuous-type rice hull carbonizer. When the drying operation is done, the grains remain in the temporary shelter. The prototype system is effective in decreasing the time needed to lower moisture content of grains by as much as 21%-22% for up to 8 hours. However, the resulting moisture content of the grains have a wide variation which needs to be refined in future designs.

Only a few trials were done and the prototype system is still subject to redesigning.