Consequently,
the blend was continuously stirred by a mixing bar and the decomposition process took place in the presence of heat and air drawn into the mixing chamber by the air pump.
The temperature during the composting process reached 60 C.
The composting of each blend (perennial grass, sawdust, and soil) was carried out for 10 days,
whereas the maturation of composts was carried out for 14 days in the cure tray located just below the mixing chamber.