Title

Paddy Drying Systems

Keywords

drying, paddy, storage, post harvest

Abstract

Rice is usually harvested at grain moisture content (MC) between 24 and 26% (wet basis). Any delays in drying,

incomplete drying or uneven drying will result in qualitative and quantitative losses including:

• Yellowing or discoloration caused by mold development and heat build-up from respiration.

• Reduced milling yields caused by high temperatures and re-wetting of grains.

• Loss of germination and vigor from grain respiration, mold and insect activities, or from exposure of grains to

temperatures above 42ºC.

• Damage caused by insects that are more active at higher MC levels.

Author

M Gummert, JF Rickman, M Bell, and the IRRI Agricultural Engineering Unit.

Date

April 2004