Air source heat pump dryer improves the quality of pumpkin seed drying

Pumpkin seeds, seeds of Cucurbitaceae pumpkins. Pick ripe fruit in the fall, take out the seeds, wash and dry or use a pumpkin seed dryer to dry. Dry and mature seeds, flat oval, slightly pointed at one end, yellow-white on the outside, slightly ribbed at the edges, about 1.2 to 2 cm long, 0.7 to 1.2 cm wide, with furry edges and many edges. The cotyledons contain fatty oil, and the radicle is small. It is better to be dry, full of grain and yellowish white.

Most of the traditional method of drying pumpkin seeds is to use natural drying, but it is affected by the weather and will be contaminated with dust and other impurities. Later, it was dried in the form of coal/fuel, but the temperature was too high, the nutrients of the pumpkin seeds were easily lost, and the taste was also changed. Some people now use gas boilers, electric drying, microwave drying, etc., but they all have certain defects, such as high drying costs. At present, the most advanced drying method is air source heat pump drying. The system consists of heat pump heating dehumidifier system, pumpkin seed drying room, hot air circulation system, condensing and dehumidifying system, temperature and humidity automatic control system, etc. Control, the drying process is mild, no contaminants are produced, thus achieving high quality drying of pumpkin seeds.

Pumpkin seed making steps

1. Sorting. Screen the pumpkin seeds, remove the damaged seeds, seed soil and other impurities, and select the seeds with full granules, uniform size, basically the same color, no mold, rot and other defects.

2. Drying. The drained pumpkin seeds are placed in the tray of the rack, and the drying temperature is adjusted. The melon seeds are easily opened, and the outer stems are wetted and taken out.

3. Pack the dried pumpkin seeds into the warehouse.

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