How to remove the shell from cashew nuts in a factory?

Cashew nuts are a popular and nutritious snack, enjoyed by millions of people around the world. However, before they can be sold to consumers, cashew nuts must undergo several processing steps in a factory, including grading, shelling, peeling, and packing. In this article, we will take a closer look at each of these steps and how they are carried out in a cashew nut factory.

 

Step 1: Grading

 

The first step in the cashew nut processing process is grading. This involves sorting the raw cashew nuts by size and quality. The nuts are passed through a series of sieves and screens to separate them into different grades based on their size and shape. The grading process is important because it ensures that only the highest quality nuts are used for further processing.

 

Step 2: Shelling

 

Once the cashew nuts have been graded, the next step is shelling. This is the process of removing the hard outer shell that surrounds the cashew kernel. There are several methods of shelling cashews, but the most common is to use a machine that applies pressure to crack the shell open. The nuts are then separated from the shell using a series of conveyor belts and air blowers.

 

Step 3: Peeling

 

After the nuts have been shelled, they are still covered in a thin brown skin called the testa. This skin is bitter and must be removed before the nuts can be sold. Peeling is the process of removing the testa from the nuts. This is typically done by soaking the nuts in water or steam for several hours, which softens the skin and makes it easier to remove. The nuts are then passed through a series of machines that rub the skin off using friction.

 

Step 4: Packing

 

The final step in the cashew nut processing process is packing. This involves packaging the nuts into bags, boxes, or other containers for shipping and sale. The nuts are typically packed by weight or volume, depending on the requirements of the customer. 

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