Beyond the Ri'ichi: Part 4:Processing long-grain rice - Milling

摘要

The most important consideration inmilling long-grain rice is proper control of the polishing pressure. If the pressure is too low, then rice milling will notprogress correctly. If the pressure is too high, it will break the rice grain. Milling long-grain using Japanese equipmentfor short-grain generates a large amount of broken rice. This is mainly due tothe inner pressure of the frictional milling machine, which is specifically designed to be high for short-grain rice milling.Long-grain rice cannot resist such high pressure and, thus, cracks. Moreover, high value varieties such as Basmati and Jasmine rice, mainly for exports, (and whose production yield impacts directly on profits), are even more likely to present a high broken rice rate, even compared to other long-grain rice varieties. For that reason, careful attention must be paid to the selection of equipment and the operation of these varieties of rice. In addition, the temperature rise of the rice grain during the milling process causes the loss of its natural aroma, hence a suppression of this temperature rise is fundamental.