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This study was conducted to determine the effect of grain moisture content and temperature of dryer on milling characters of two Iranian rice cultivars (Oryza
sativa L. cvs. Amol-3 and Heraz). Experiments were done in Arnot Rice Research Station, Mazandaran, Iran. Treatments were three moisture contents of rice grain
(10-11, 11-12 and 12-13 %) and four temperatures of rice drying machine (30 C? 35 C? 40 C? and 45 C? ). The traits studied were: brown rice, percentage of hull and husk,
milling recovery, head rice, broken rice, and percentage of white rice. Statistical analysis showed that for cv. Amol-3 the best grain moisture content and the best temperature of dryer were 10-11 % and 35°C, respectively. From 20 Kg grain (rough
rice) of cv. Arnol-3, 14.3 Kg white rice was produced. Milling recovery, head rice and broken rice for cv. Amol-3 were 71.7%,59.1 % and 14.2%, respectively. The best
grain moisture content for cv. Heraz was 10-11 % and the best temperature of rice drying machine was 45c. For cv. Heraz, from 20 Kg of paddy, 14.6 Kg white rice was
produced. Also, for (:v. Heraz, milling recovery, head rice and broken rice were 71.7 , 63.2 and 9.9 Percent, respectively.