Introduction
Almonds are a delicious and nutritious snack that are enjoyed by people all around the world. They are a great source of protein, fiber, healthy fats, and many other important nutrients. In order to make almonds more accessible, they are often sold already shelled. But have you ever wondered how they commercially shell almonds? In this article, we will explore the process of commercial almond shelling and the machinery involved.
Harvesting Almonds
Before we can shell almonds, they must first be harvested. Almond trees usually bloom from February to March, and the nuts mature over the summer. In late August or early September, the almond hulls begin to split, indicating that they are ready for harvest. Once the almonds are harvested, they are dried to reduce moisture content and prevent mold growth.
Cracking the Outer Shell
The first step in commercial almond shelling is to crack the outer shell. This is typically done using a machine called a cracker. The cracker is a large machine that uses rollers or blades to crack the shells of the almonds. The almonds are fed into the top of the machine, and the cracked shells are separated from the nut meats using various methods, depending on the type of machine used.
One type of cracker is the impact cracker. This machine uses two plates that are pressed together at high speed to crack the shells. The almonds fall through a chute and are separated from the shells using a combination of air flow and gravity.
Another type of cracker is the shear cracker. This machine uses cutting blades to slice through the shells and open them up. The almonds are then separated from the shells using various methods, including air flow and shaking.
Separating the Nut Meats
Once the shells are cracked, the next step in commercial almond shelling is to separate the nut meats from the shell fragments. This is typically done using a machine called a decorticator. The decorticator is a large machine that uses a series of rollers and screens to separate the nut meats from the shell fragments.
The process begins with the cracked almonds being fed into the decorticator. The rollers inside the machine break the almonds into smaller pieces, and the screens inside the machine allow the nut meats to pass through while trapping the shell fragments. The shell fragments are then removed from the machine and discarded.
Cleaning the Almonds
Once the nut meats are separated from the shell fragments, they are cleaned to remove any remaining debris. This is typically done using air flow and/or vibratory screens. The almonds are fed into the cleaning machine, and the air flow or vibration helps to separate any debris from the nut meats.
After the cleaning process, the almonds are inspected for quality. Any almonds that do not meet the specified quality criteria are removed and discarded.
Packaging the Almonds
The final step in commercial almond shelling is packaging the almonds. The almonds are usually packaged in bulk and shipped to various retailers and food manufacturers. The packaging process varies depending on the type of packaging being used. Some common types of packaging include bags, boxes, and bulk containers.
Conclusion
In conclusion, commercial almond shelling is a complex process that involves several stages and pieces of machinery. From cracking the outer shell to separating the nut meats and cleaning and packaging the almonds, each step is essential to producing high-quality almonds that are ready for consumption. Understanding the process of commercial almond shelling can help consumers appreciate the work that goes into producing this popular snack.