Rice is processed using milling machines to produce different types of rice. The process involves separating debris, hulling, husking, and polishing. Combined machines can produce brown and white rice efficiently.
Rice is one of the most consumed edible grains. For rice to be suitable for human consumption, it has to be processed in a number of ways. There are several rice milling machines that convert raw rice into the grain commonly seen in supermarkets around the world. Similarly, different types of rice can be produced from the same grain using milling machines in different ways. The most common form of rice is white rice, which is also the most processed form of rice.
The rice milling process has a number of steps. After the rice has been harvested and dried, it must be separated from further debris. Large mechanical separators sift and filter the rice; this is the first step in rice milling.
After the separation process, the rice needs to be hulled. In this process, the outer shell is removed from the rice. Large rice milling machines accomplish this task by using a large rotating blade that removes parts of the hull as the rice passes through the machine. The shell of the rice grain contains fats that can rot or mold during storage. Rice that does not undergo the hulling process at all or is only partially hulled is sold as brown rice.
White rice generally goes through a husking machine several times before it’s ready to reach the next step in milling. This ensures that the husks are completely removed from the rice. The rice husker also performs part of the separation process, and air is blown over the rice to remove dust, dirt, and broken pieces of rice. These two milling machines are sometimes combined into one machine to save space and make factory operations more efficient.
The polisher is the latest in the rice milling machine series. The hulled white rice is placed in the polisher and rotated against a screen. As the rice rubs against this screen, it is smoothed out more than in the husking process. When the rice leaves the polisher it is brighter white and may be slightly translucent.
Rice milling machines are increasingly being combined into single machines. These machines are adjustable in order to be able to produce brown and white rice. While most of the world’s rice is still prepared for consumption and storage using hand tools, combined rice milling machines make it more convenient for people to produce large quantities of milled rice quickly and efficiently.
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