Rice storage methods and techniques
The shell of rice is harder and has a protective effect on the grain. It can resist the influence of insect pests and external temperature and humidity to a certain extent. Therefore, rice is better preserved than general finished grain. However, rice is prone to buds and is not resistant to high temperatures, so special attention is required.
Most rice (such as japonica rice) has no post-maturing stage and is physiologically mature at the time of harvest and has germination ability. At the same time, the amount of water absorption required for germination of rice is low. Therefore, when the rice is harvested, such as rain and rain, it cannot be harvested, threshed, or sun-dried in time, then the rice will germinate in the field and on the site. The rice in storage is also prone to buds if it is condensation, moisture, or rain. Rice threshing and sun-drying are not timely, and even the grass is piled up, which is easy to yellow. The quality of the bud and yellow rice is greatly reduced.
Rice is not resistant to high temperatures, and the rice in the summer is easy to age. The rice that blooms under the scorching sun, or the rice that suddenly catches cold after exposure, is prone to “boomingâ€.
Shortly after the new rice is put into storage, if the temperature drops, it will often condense on the surface of the grain pile, which will increase the surface grain moisture, which is unfavorable for storage, and should reduce the moisture of the surface grain storage in time.
Rice storage method
Guarantee the quality of the irrigated rice: rice with large moisture, many impurities, and imperfect grains, easy to heat and mildew, and not durable. Therefore, improving the quality of irrigated rice is the key to safe storage of rice. The safe moisture standard for rice should be determined according to the variety, season, region and climatic conditions. Generally, the glutinous rice is below 13%, and the glutinous rice is below 14%. The less impurities and imperfect grains, the better. If the irrigated rice has large water and impurities, it should be stored separately, aired or dried in time, and screened or air-selected to remove impurities.
Timely ventilation: New rice should be ventilated and cooled down due to strong breathing, high grain temperature and high moisture. Especially when it is cool in autumn, the temperature difference between the inside and outside of the grain pile is large. At this time, the ventilation should be strengthened, and the grain surface should be deepened to disperse the heat of the grain pile to prevent condensation. Conditional mechanical ventilation is available.
Low temperature sealing: make full use of the cold and dry weather in winter, and ventilate, so that the grain temperature is reduced to below 10 °C, the water is reduced to within the safety standard, and the gland is sealed before the temperature rises in spring, so that it can be safely summer.
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