Marketable rice is generally in form of white rice but this type of rice is less nutritious than the parboiled rice. The layers in the rice kernel contain majority of the nutrients that are removed during polishing of white rice.
The starting quality of the paddy for rice milling is should be good and paddy should be at the right moisture content (14%) and have a high purity. Characteristics of a good quality paddya. uniformly mature kernelsb. uniform size and shapec. free of fissuresd. free of empty or half filled grainse.
1. Clean paddy after cleaning and destoningThe presence of poor-quality paddy lowers the total milling recovery. The impurities, straws, stones and small clays are all removed by cleaner and destoner, as well as those immature kernels or half-filled grains.
Rice is one of the most widely consumed staple foods in the world, and its production and processing is a critical component of the agricultural industry. With the growing demand for rice, rice processing machines have become an indispensable tool for rice farmers and processors.
The rice mill mainly uses the force of mechanical equipment to peel and whiten the brown rice. When the brown rice flows into the whitening room from the hopper, the brown rice is squeezed in the whitening room due to the internal pressure of the thallium and the push of the mechanical force.
Rice Milling Facility’s ConfigurationsThe rice milling facility comes in various configurations, and the milling components vary in design and performance. “Configuration” refers to how the components are sequenced.
The flow diagram below represents the configuration and flow in a typical modern rice mill.1 - paddy is dumped in the intake pit feeding the pre-cleaner2 - pre-cleaned paddy moves to the rubber roll husker:3 - mixture of brown rice and unhusked paddy moves to the separator
From breeding, transplanting, harvesting, storage, milling to cooking, every link will affect the rice quality, taste and its nutrition. What we are going to discuss today is the effect of rice milling process on the quality of rice.