How to Dehydrate Green Bean

Green beans are native to the Americas, have a wide range of uses and are rich in nutrients. They are the raw materials for the food processing industry and high-quality agricultural products for international trade import and export. Kidney beans can be eaten fresh or processed into dehydrated or canned vegetables. Green bean have been widely planted in various tropical to temperate regions and are deeply loved by people. Dehydrating green beans can not only prolong the shelf life of green beans, but also facilitate transportation and reduce transportation costs.

Therefore, the dehydration of green beans has a prosperous development. So, how to dehydrate green beans? We divide it into two methods according to the output. One is natural dehydration and the other is artificial dehydration.

The traditional sun dehydrating method

Step 1. Washing the fresh green beans and remove the heads on both sides.
Step 2. Slicing the green beans into evenly small pieces. If you want to dry whole green beans, you can skip this step.
Step 3. Putting the green beans into the boiling water and continue to boil for 1 minute.
Step 4. Removing the green beans from the boiling water and cool.
Step 5. Putting the cooled green beans on the tray, and put the tray in the sun for 1-2 days.
This traditional method of drying green bean is economical and does not require any investment. However, because the drying effect is greatly affected by the environment and is not easy to control and even defective bean may appear. What’s more, the traditional drying process is time-consuming and labor-consuming, and drying green beans requires a huge space, if you want to dry green beans in large quantities, it is recommended that you use a professional green bean drying machine.

The professional machine dehydrating green beans

A professional green bean dryer is an indispensable part for green bean processing or agricultural production. So, what are the green bean dryers? How to choose a suitable green bean dryer? Next, I will share with you the green bean dryer.
The green bean dryer used are different according to the output of green bean and the needs of customers. It also depends on the variety of green beans. Green bean dryers are generally divided into three types: green bean dehydrate room, mesh belt green bean dehydrator and green bean all-in-one machine. Next, I will share these three green bean dehydraors for you.

1. Green bean dehydrate room

If we use the green bean dehydrate oven, the equipment is equipped with a small cart with a tray and a tray rack. When we dry the green bean, we lay green bean in the tray, put it on the tray rack of the cart, and then push it into the green bean drying room for drying. 
The heat source of the green bean drying room is air. The heat in the air is absorbed by the heat pump compressor. After compression and release, a large amount of high-temperature hot air can be obtained, so as to realize the continuous and uniform drying and processing of green bean. 

Components of green bean dehydrate room

One set green bean dehydrate room contains: heat pump dehydrate host, dehydrator chamber, fan frame with fan, trolley with tray. The dryer chamber is used 100mm polyurethane insulation board, supporting 304 stainless steel trolleys and trays.

Advantages of green bean dehydrate room

1 Wide application. Suitable for vegetable, fruit, seafood, spice etc different kinds of material.
2 High drying capacity. Each hour can drying 3-4kg water.
3 Better drying effect. Can better keep material shape , color , nutrition etc.
4 Simple operating. PLC touch screen control panel , can set up temperature, humidity in advance  
5 Low energy consumption. Heat pump system, can save 70% energy.

2. Mesh belt bean dehydrator machine

Next, I will introduce you to the green bean mesh belt dehydrator machine. 
If we are using a mesh belt type green bean dehydrator machine, then this equipment has a wide range of heat sources, such as coal heating, gas heating, steam heating, biomass pellet heating, or electric heating. It is a multi-layer continuous drying structure. When drying the green bean, we only need to put the green bean slices at the feed inlet, and the green bean slices will enter the dryer along with the feeding conveyor for drying.
The green beans are dried and dehydrated layer by layer from top to bottom. The drying speed is fast and the production efficiency is high. It is very suitable for the drying and processing of large quantities of green beans.


Components of green bean dehydrator machine
One set green bean dehydration machine contains: homogenizer, feeding conveyor,dryer host, output conveyor, observation door, heat source, air intake system, control panel.

3. All-in-one dehydrator machine

Its drying principle is the same as that of the green bean dryer room. If we use the green bean all-in-one dryer machine, the machine is equipped with a trolley with tray and tray rack. When drying green bean, we put it in a tray, put it on the tray rack of the cart, and then push it into the green bean drying room for drying.
    The heat source of green bean all-in-one dryer is air. The heat in the air is absorbed by the heat pump compressor. After compression and release, a large amount of high-temperature hot air can be obtained, so as to realize the continuous and uniform drying and processing of green bean.
The operation of this all-in-one drying equipment is relatively simple, and drying can be carried out only by plugging in the power supply. 

Components of green bean all-in-one dehydrator machine

Advantages of green bean all-in-one dehydrator machine
1. Stainless steel 304 material. The whole machine uses stainless steel material, can work a long time, and keep better heat preservation, bottom have wheeler, can move easily.
2. Great energy saving. Heat pump system design, low energy consumption, can save 75% energy than traditional electricity element heating.
3. Wide application easy operation. Fit for wide application, seafood, fruit, vegetable, spice, herbs, etc all can use it to dry.
4. Gentle drying. Temperature range 40-80°C, low temperature dehydrate processing can better keep material nutrition, during drying, no need to move the
machine.

How to choose a suitable green bean dehydrator machine

Having learned about the above three kinds of green dryers, let me introduce you how to choose a green bean dryer suitable for you.
First of all, it depends on our demand for green bean processing. For large output, use a green bean mesh belt dryer. Generally, the output of a green bean mesh belt dryer is 300-2000kg/h. For small output, the output of a heat pump dring room is 100-5000kg/batch. The output of all-in-one green bean dryer is the smallest, only 100-1500kg per batch. It is suitable for agricultural plants or small processing plants. Oven length and mesh belt layers can be customized. We can choose and match them reasonably according to our own processing requirements.

These are the ywo kinds of green bean dehydrate process explained by Baixin drying machinery company for you. Do you want to start a green bean business? If you want to know more professional questions about green bean dehydrate processing, please feel free to contact us online!

Beans drying process video：