The main aim of this research was to assess the effectiveness of using Teflon material in search of locally available quality/effective roller material for a prototype rice roller dehusking /destoning machine developed in Nigeria making use of four locally cultivated rice varieties. This required determination of the effectiveness of Teflon material as roller for the developed prototype dehusker/destoner. Microsoft Excel 2007 and Minitab 16were used for the analysis of variance of the two main factors (paddy varieties; Faro 35, 44, 55 and Ofada and moisture content levels; 12.00%-13.99%, 14.00%-15.99%, 16.00%-17.99%, 18.00%-19.99% and 20.00%-21.99%). The dehusker cleaning efficiency was found to be 94.73%, coefficient of dehusking was 0.63, coefficient of wholeness was 0.85, dehusking efficiency was 50.54%, dehusking capacity was 10.56 kg/h respectively. The effect of moisture content and test paddy on coefficient of wholeness and dehusking efficiency were significant at p ≤ 0.05,while only moisture content effect was significant on cleaning efficiency.
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