The snow melted away from the heat. Let's talk about why the grain stacked in the open air can heat up on a snowy day.
This is actually caused by the respiration of food. Food is alive, it absorbs oxygen from the air and exhales carbon dioxide, which is respiration. Respiration produces heat, which is why the grain pile is heated. If you think about it, the food is piled together, just like people huddled together, breathing will produce heat, and if the heat can't get out, it will get hotter and hotter, just like people in the house with the door closed and the air conditioner turned on, and after a long time, the air in the house will become stuffy and uncomfortable.
On a snowy day, the temperature is low, and the respiration of the grain should be weakened, but because the snow covers the grain pile, it is like covering the grain pile with a quilt, covering the heat, but the temperature of the grain pile rises. It's like if you wear a thick cotton jacket in winter, although it's cold outside, the heat in your body can't get out, and you will feel hot.
Therefore, it is normal for grain stacked in the open air to heat up on snowy days. However, if the heat is excessive, it will cause damage to the grain and affect the quality and safety of the grain. Therefore, when we farmers store grain, we must pay attention to preventing the grain pile from heating up.
So what if this happens in the countryside?
First of all, we should always check the temperature and humidity of the grain pile, and use a thermometer and hygrometer to measure it. If it is found that the temperature of the grain pile exceeds the normal range, it is necessary to take measures in time. Generally, the temperature of the grain pile should be below 15 degrees Celsius and the humidity should be around 60%. Be careful if the temperature of the grain pile exceeds 30 degrees Celsius and the humidity exceeds 70%.
Secondly, we must ventilate and dissipate heat in time, open the doors and windows of the grain pile, let the air circulate, and dissipate the heat. However, it should be noted that ventilation and heat dissipation should be carried out at noon on a sunny day, because the temperature is the highest at this time, and the temperature difference between the inside and outside of the grain pile is the largest, which is most conducive to heat dissipation. If ventilation and heat dissipation are dissipated at night or on a cloudy day, the temperature of the grain pile will be lowered, the moisture content of the grain will be increased, and the grain will become moldy and deteriorate.
Finally, we must turn over the pile in time to dissipate heat, turn over the grain pile, expose the grain to the air, and let the heat escape. However, it should be noted that the heat dissipation of the pile should be carried out under the condition that the heat of the grain pile is not too serious, if the grain pile has been overheated, or even has smoked and caught fire, it is necessary to call the police in time and let the fire brigade deal with it.
Of course, these methods are palliative, not the root cause, and if we want to fundamentally solve the problem, we must pay attention to prevention. We must choose a suitable storage location, and the place where the grain is stored should be dry, ventilated, cool, moisture-proof, rodent-proof, and insect-proof. We need to control the moisture content of the grain, and the moisture content of the grain should be within a safe range, generally no more than 14%. We must regularly inspect the grain piles and deal with abnormalities in a timely manner. We must strengthen management and protection to prevent man-made or natural factors from causing damage to food.
I have to remind you again, there has been a major event in our country recently, and that is the new crown epidemic. The new crown epidemic has had a great impact on our country's agriculture and food production, and it has also caused great difficulties in the lives of our farmers. We must actively respond to the call of the country, do a good job in epidemic prevention and control, and at the same time do a good job in agricultural production and grain storage to ensure the life and health of ourselves and our families. #今日之深思分享# #你晒过粮食吗#
