
Grain refrigerators are the equipment that saves the grain from its surrounding air, heat, and water. It lowers the temperature and humidity which further protects the harvest even without chemical treatment. After harvesting, the grain should be cooled down to a safe storage temperature as soon as possible. The insects become dormant at the temperature of 15°C or less which further saves the grain from degradation. Cool conservation of grain saves the spread of mold and the contamination of the grain with toxic mycotoxins. Grain cooling solutions reduce the cellular respiration losses and self-heating which originally promotes the spread of insects, microbes, and mold in the grain.
Cereal grains are considered hygroscopic grains that depend on the temperature. Due to the balance between the water content of the grain and the humidity of the ambient air, grains are preserved. Unconditioned air is used for the task and this technique is useful only if weather conditions are favorable. With the help of cool and dry air, the grains can be easily preserved without any harm. After the harvest of the grain, the loose grain is aerated and the grain temperature is set at 22°C. Further, the grain cooler cools down the grain below 15°C. Modern grain cooling devices condition the ambient air and function in case of any weather outside.
Imagine if grain from a favorable weather condition is circulated in the areas where weather conditions aren’t favorable. The grain will degrade which will cause monetary loss and wastage. Most of the time it happens that wheat crops get degraded due to rain and moisture and the farmers have to sell the grain to the wineries and beer manufacturers. The poor thermal conductivity of the grain is due to the small contact area and the air-filled cavities between the grains. Chilled over 3-6 weeks, the grain maintains its temperature for the continuous 6-8 months due to the intrinsic solution.
Conclusion
Since everyone is moving toward a healthy and organic lifestyle, chemicals aren’t considered a good option for the preservation of grains. So, grain cooling solutions are the perfect solution for preservation. The advanced coolers enable the conservation of numerous types of agricultural dry bulk, be it rapeseed, malting barley, or other grain.