Rice Milling Manual IRRI Rice Knowledge Bank
dependent on the quality of the paddy, the milling equipment used and the skill of the mill operator. 2 The Rice Grain The rice grain has both physical and chemical characteristics. Physical Structure A rice grain is made up of an outside husk layer, a bran layer, and the endosperm, see Figure 1. The husk layer (lemma and palea) accounts for 20% of the weight of paddy and helps protect the ...