Cashew

The cashew grows on a large tree.

This tree likes warm, tropical places. It grows a tasty nut. The nut grows at the end of a fruit. This fruit is called a cashew apple. The apple can be red or yellow. People use the juice to make sweet drinks. The nut is a yummy snack. It can also be used in many recipes. Some people even make nut butter from it. The cashew tree is a very useful plant.

The cashew is a tropical tree. It is an evergreen, which means it stays green all year. This tree is native to South America. Some trees grow very tall. Other small types are called dwarf cultivars. These small trees are very useful for farmers. They grow faster than the tall trees. In 2023, people harvested 3.9 million tons of cashew nuts.

The cashew tree makes two different parts. One part is a fruit called a cashew apple. It can be red or yellow. People use the juice for sweet drinks. The other part is the true fruit. This is a kidney-shaped seed inside a shell. We call this the cashew nut. People eat the nut as a snack. They also use it in recipes or to make butter.

You must be careful with the shell. The shell has a resin, which is a sticky substance. This resin can irritate your skin. It is like the oil in poison ivy. Because of this, most nuts are sold without their shells.

Cashew nuts are very healthy. They have lots of fat and protein. They also have minerals like magnesium. Many countries around the world grow and eat cashews.

The cashew is a tropical evergreen tree that belongs to the Anacardiaceae family. It is native to South America, but it has spread all over the world. This tree is very special because it produces two different things. One is the cashew apple, which is a colorful fruit. The other is the true fruit, which is a kidney-shaped seed inside a shell. We usually call this seed the cashew nut.

Learning how the cashew grows is quite interesting. First, a small flower produces a tiny fruit called a drupe. This drupe is the true fruit and contains a single seed. Next, the part of the flower called the pedicel begins to grow and expand. This part turns into the large, fleshy cashew apple. The apple can be light red or yellow when it is ripe. The nut stays attached to the very end of this apple.

People have been using cashews for a very long time. Portuguese explorers moved the trees from South America to other places in the 1500s. They began exporting the nuts from Brazil as early as the 1550s. Later, they took the trees to Goa in India. From India, the trees spread through Southeast Asia and into Africa. Today, the Ivory Coast and India lead the world in harvesting nuts.

There are many important facts about how cashews are grown and sold. In 2023, the world harvested 3.9 million tons of cashew nuts. Some trees grow very tall and take eight years to produce a big harvest. However, farmers often use dwarf cultivars that are much shorter. These small trees start producing after only one year. They are very profitable because they produce more nuts per hectare.

Cashews are useful in many ways in our daily lives. You might eat them as a snack or find them in Indian curries. They are also used to make plant milk or even cashew cheese. The cashew apple can be made into sweet juices or fermented drinks. You must be careful with the shells, though. The shells contain anacardic acid, which can irritate your skin like poison ivy. This is why most cashews are sold without their shells.

The cashew is a tropical evergreen tree known scientifically as Anacardium occidentale. It belongs to the Anacardiaceae family. This tree is highly valued because it produces two distinct edible parts. One is the cashew apple, which is a fleshy accessory fruit. The other is the true fruit, a kidney-shaped drupe often called a cashew nut. These products support massive global industries and diverse culinary traditions.

Understanding the growth of the cashew requires looking at its unique biology. The process begins with small flowers that grow in clusters called panicles or corymbs. These flowers start as pale green and turn reddish as they mature. First, a small fruit called a drupe develops on the tree. This drupe is the true fruit and contains a single seed encased in a shell. After the drupe forms, the pedicel, or the fruit stem, begins to expand. This expansion creates the cashew apple, which is an accessory fruit or pseudocarp. The fleshy apple grows to be about 7 to 10 centimeters long. It eventually hangs with the true nut at its very end.

Farmers utilize different types of cashew trees depending on their needs. The traditional cashew tree is a large evergreen that can grow up to 12 meters tall. These large trees require three years to start production. They take eight years to reach a level of economic harvest. In contrast, many commercial orchards use dwarf cultivars. These smaller trees grow to only about 3 meters in height. They are more profitable because they mature much faster. Dwarf trees start producing after just one year. They also reach economic yields after only three years. These varieties can produce over one ton of nuts per hectare.

The history of the cashew is tied to global exploration. The species is native to tropical South America. During the 1500s, Portuguese explorers distributed the trees around the world. Portuguese colonists in Brazil began exporting cashew nuts as early as the 1550s. Between 1560 and 1565, the Portuguese moved the trees to Goa, India. From India, the plant spread throughout Southeast Asia and eventually into Africa. The name "Anacardium" comes from Greek and Neo-Latin roots. It likely refers to the heart shape of the fruit or the seed. The Tupi word for the fruit means "nut that produces itself."

Global cashew production is a massive economic force. In 2023, the world harvested 3.9 million tons of cashew nuts. The Ivory Coast and India are the leading producers. Together, these two countries account for 46% of the total world supply.

In the food industry, cashews are highly nutritious. A 100-gram serving of raw cashews provides 553 kilocalories. They are rich in fats, providing 44% of their weight. They also offer significant amounts of protein and dietary fiber. Cashews are excellent sources of minerals like copper and manganese. They also provide high levels of magnesium, which is 79% to 110% of the Daily Value.

Cashews are used in many different ways across various cultures. In Indian cuisine, they are used in curries and sweets like kaju barfi. In the Philippines, they are eaten with a treat called suman. Some people even use them to make plant milk or cashew cheese. The cashew apple is also very versatile. It can be eaten fresh or cooked in curries. In Brazil, the juice is used for sweets and alcoholic beverages. In Goa, India, the juice is fermented to make a drink called feni. This beverage can have an alcohol content of 40% to 42%.

While cashews are delicious, they require careful handling due to their chemistry. The shell of the nut contains a phenolic resin called anacardic acid. This substance is a potent skin irritant. It is chemically related to urushiol, the oil found in poison ivy. Contact with the shell can cause contact dermatitis. Because of this, cashews are typically sold without their shells. However, the shells are still very useful in industry. Cashew nutshell liquid, or CNSL, is a byproduct of processing. This liquid is used to make varnishes, lubricants, and paints. Scientists are even researching its use in biotechnology and nanomaterials.