How to Dry Grain/Dehydrate Grain in a Dehydrator
Introduction to grain：
Grain are rich in nutrients, mainly protein, vitamins, dietary fiber, fat, etc., and are also commonly referred to as raw and finished grains such as cereals, beans and potatoes for consumption. The food concept of the Food and Agriculture Organization of the United Nations (hereinafter referred to as FAO) refers to cereals, including wheat, beans, coarse grains and rice.The moisture content of grain after harvest is of great significance for its commercial or planting use. The ideal moisture content of grain is to dry the grain to near the critical point of microbial growth in the stored grain. Under this moisture condition, the storage safety of grain can be guaranteed, the freshness and edible quality of grain can be maintained to the greatest extent, and at the same time, it can be maximized. To maintain the germination rate and seed quality of grain.
Moisture and temperature are the main factors that affect the respiration of food, but the two are not isolated, but restrict each other. When the content is low, temperature has little effect on respiration; when grain moisture increases, the change in respiration intensity caused by temperature is very intense. According to the experiment, when the moisture meter is 18-23% of the grain at a temperature of 50°C-55°C, the breath suddenly rises and then suddenly weakens. However, after a few days and nights at the same temperature for food with a moisture content of 14-16%, there is almost no change in breathing ability.
Grain drying process：
Under normal circumstances, the grains are exposed to hot air for only 10 minutes during drying, and then slowly resuscitated for 50 minutes to allow the moisture of the grains to move to the germ. The temperature of the hot air does not exceed 55 ℃, and it is dried at a constant temperature. The moisture of the dried grain is even, the taste is good, and it is easy to store.
Recommendation of grain dryer/drying machine
Commercial 100-3000kg/h large amount of dehydration wide application and easy operation
Heat pump drying machine use the principle of inverse Carnot cycle. It absorbs low-temperature heat energy in the air, which becomes high-temperature heat energy after efficient heat collection and integration by the heat pump system, and is transported to the drying room for cyclic heating and drying of materials.It refers to exhausting the hot and humid air in the drying room directly to the outside of the drying room through dehumidification device, and then replenishing natural fresh air.
Hot air circle drying machine belongs to high temperature heat pump unit. Its working principle is: the working fluid of the heat pump is compressed by the compressor, becomes high temperature and high pressure gas, enters the condenser, condenses and liquefies the heat, and is used for air heating in the drying room. The moisture in the material is vaporized and evaporated by the form of hot air, and the evaporated water vapor is discharged by the moisture discharge system, thereby achieving the purpose of drying the drying material.
Grain drying video：
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