Although paddy rice is suitable for long-term storage, once it is exposed to intense sunlight or dried at higher temperatures, it will reduce the value of food. The newly harvested rice has strong physiological activity. After entering the warehouse, it is prone to self-heating, which causes the grain temperature to rise, leading to condensation and mildew in the upper grain layer. In the spring of the next year, the temperature will rise. Because of the increase in water content, it is prone to sprouting, which is commonly known as bud rotting. The respiration of rice is generally higher in the first 1-2 years of storage, and then gradually decreases and tends to be stable. Therefore, rice should be well controlled for moisture and temperature when it is in storage. The moisture content is about 14%, and the temperature is below 25°C.
Once the rice rice loses the skin protective layer, the nutrient is directly exposed to the outside, and the external temperature, humidity, and oxygen are more sensitive to moisture, and the hygroscopicity is strong. The amount of the bacteria is more, and pests and molds are easy to directly harm, and easily lead to nutrients. Accelerate metabolism. The fat contained in the sugar powder is easily oxidized and decomposed to form fatty acids, which increases the acidity of the rice. Due to the existence of the above unfavorable factors, the rice aging and mildew rate are more prominent. Therefore, rice should be stored at low temperature, not directly blowing or sudden cooling, can only slowly cool, and in the low temperature environment, slow precipitation, drying, not high temperature drying or direct sunlight exposure.
The following points must be noted during storage:
1. Strictly control the moisture content of moisture storage rice is below 13%. The safe moisture can also be adjusted according to the temperature. In summer and autumn, when the temperature does not exceed 35°C, it is below 13%. In spring, when the temperature does not exceed 20°C, it is below 14%. In winter, the temperature below 10°C can be relaxed to 15-16%.
2, remove the lotus root powder, pest control mildew rice during storage should be checked. Found that there is a precursor to heat and mildew, it should be timely airing. When glutinous rice should be removed, the glutinous rice powder should be removed again to increase the storage stability of rice.
3. Natural low-temperature storage In order to make the rice safer in summer, natural cold in winter and early spring can be used to cool and dehumidify the rice, and close the warehouse before entering the summer to reduce the impact of high temperature and high humidity on rice.
Once the rice rice loses the skin protective layer, the nutrient is directly exposed to the outside, and the external temperature, humidity, and oxygen are more sensitive to moisture, and the hygroscopicity is strong. The amount of the bacteria is more, and pests and molds are easy to directly harm, and easily lead to nutrients. Accelerate metabolism. The fat contained in the sugar powder is easily oxidized and decomposed to form fatty acids, which increases the acidity of the rice. Due to the existence of the above unfavorable factors, the rice aging and mildew rate are more prominent. Therefore, rice should be stored at low temperature, not directly blowing or sudden cooling, can only slowly cool, and in the low temperature environment, slow precipitation, drying, not high temperature drying or direct sunlight exposure.
The following points must be noted during storage:
1. Strictly control the moisture content of moisture storage rice is below 13%. The safe moisture can also be adjusted according to the temperature. In summer and autumn, when the temperature does not exceed 35°C, it is below 13%. In spring, when the temperature does not exceed 20°C, it is below 14%. In winter, the temperature below 10°C can be relaxed to 15-16%.
2, remove the lotus root powder, pest control mildew rice during storage should be checked. Found that there is a precursor to heat and mildew, it should be timely airing. When glutinous rice should be removed, the glutinous rice powder should be removed again to increase the storage stability of rice.
3. Natural low-temperature storage In order to make the rice safer in summer, natural cold in winter and early spring can be used to cool and dehumidify the rice, and close the warehouse before entering the summer to reduce the impact of high temperature and high humidity on rice.
Small Scale Flour Milling Plant
HEBEI PINGLE FLOUR MACHINERY GROUP CO., LTD , https://www.plrollermill.com