How to Dry Beans

Bean (cowpea) is a nutritious and popular vegetable. Its dried products are easy to store and have a unique flavor, which is in high demand in the market. However, traditional drying methods are limited by weather conditions and have low efficiency, while modern drying technology provides a more stable and efficient solution. Next, Jinlu Machinery will explain the drying method of green beans:

1、 The main methods for drying green beans

①Traditional drying method

Traditional sun dried beans rely on sunlight and natural air drying, with the following steps:

Killing: Boil the beans in boiling water for 3-5 minutes (salt can be added to kill bacteria), remove and cool with cold water.

Drying: Spread or hang in the sun for 3-5 days until completely dry.

Disadvantages: Dependent on weather, susceptible to pollution, low efficiency (10 pounds of fresh beans only get 1 pound of dry product).

②Heat pump drying technology

The air source heat pump dryer utilizes the reverse Carnot principle to absorb heat from the air for drying, making it suitable for large-scale production

Temperature can be controlled (50-80 ℃) to avoid high temperatures damaging nutrients.

Energy saving and environmentally friendly, saving 75% energy consumption compared to coal-fired drying.

Suitable for continuous operation, unaffected by weather conditions.

③Electric heating drying room (Jinlu Machinery solution)

Compared to traditional air drying and ordinary heat pump drying, Jinlu Machinery’s 6-car electric heating dryer provides a more stable and efficient solution, especially suitable for food processing enterprises:

Accurate temperature control (20-80 ℃) ensures the green color and good rehydration properties of the bean characters.

Closed loop drying to avoid contamination and comply with food safety standards.

The single processing capacity is large (over 1 ton), and the drying time is only 8-12 hours.

2、 The core advantages of Jinlu Mechanical Electric Heating and Drying Machine

①Efficient and energy-saving, reducing production costs

Electric heating drying saves 40% of energy consumption and has lower operating costs compared to coal combustion.

The hot air circulation system reduces heat loss and improves energy utilization efficiency.

②Intelligent control, easy to operate

Fully automatic temperature control, no need for manual intervention, to avoid uneven drying. 24-hour continuous operation to meet the needs of large-scale production.

③Ensure the quality of beans

Low temperature drying (70 ℃) preserves the protein, vitamins, and other nutritional components of the beans. Uniform heating to avoid mold or yellowing caused by traditional air drying.

④Environmental protection and safety, in compliance with food standards

No combustion emissions, avoiding pollution problems caused by traditional drying methods. Closed design to prevent dust and insect contamination.

3、 Application Case of Jinlu Mechanical Drying Machine in Bean Processing

A food processing plant in North China adopts Jinlu 6-car electric heating dryer, matched with cutting machine and finishing equipment, to achieve efficient production:

The daily processing capacity reaches 3-4 tons, which is 300% more efficient than traditional drying methods. The finished bean products have a green color, good rehydration properties, and excellent market feedback.

Labor costs have been reduced by 50%, with a high degree of automation and reduced reliance on manpower.

For soybean processing enterprises, Jinlu Machinery’s electric heating dryer provides the optimal drying solution, which not only increases production capacity but also ensures product quality, making it a reliable choice for modern food processing.