What is sun drying?
Sun drying is the traditional method for reducing the moisture content (MC) of paddy by spreading the grains in the sun. The solar radiation heats up the grains as well as the surrounding air and thus increases the rate of water evaporating from the grains.
Why sun dry?
Sun drying has lower cost compared to mechanical drying. It requires little investment and is environmental friendly by using the sun as heat source, thus, carbon dioxide (CO2) is not produced.
How to sun dry?
Limitations of sun drying:
Prepared by M Gummert with input from JF Rickman (2004), updated by M Gummert (2010)