Betel nut drying
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Betel nut is a tropical specialty product that has been processed multiple times. Deep processing is mainly done in Hunan, and primary drying processing is mainly done in Hainan, with a primary processing output value of nearly 3 billion yuan. Hainan's betel nut drying is produced using traditional earthen furnace workshops, which produces a lot of dust and smoke, seriously pollutes the environment, harms the health of workers, and consumes a lot of coal and wood. This kind of earthen furnace processing relies on experience to judge the temperature, and the product quality cannot be guaranteed.
Betel nut drying process steps:
The first stage: When the fruit is just put into the oven, due to the high water content, the dryer is first used to gradually increase the temperature for 20 to 24 hours to gradually evaporate the water, and the temperature is adjusted to automatically dehumidify for 1 to 2 days to discharge most of the water.
The second stage: shovel screening. In order to ensure the uniform drying speed of the betel nut, the betel nut is screened, large and small fruits are selected, and the large fruits are placed at the bottom of the drying room.
Stage 3: The temperature of the oven is gradually increased to evaporate the water, and the humidity is adjusted to automatically discharge the water vapor. This continues for 20 to 24 hours to discharge most of the water.
Stage 4: The temperature is lowered to about 55°C and the baking is continued for two days until the weight of the fruit drops to 25 to 30% of the weight of the fresh fruit, and the fruit becomes dried fruit.
The heat pump equipment is a mechanized and fully automatic type, which meets the needs of modern social development and changes the traditional outdated drying method of manual waiting, adding firewood, adding coal, turning the pan, measuring temperature and humidity. It is a cost-effective dryer in the current market, which is carefully designed and improved based on the dryers that run well in the current market through the combination of theory and practice.
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