How Cashews Grow
The cashew apple
Can you recognize this fruit in the picture to the right? Would it surprise you to know that you have probably eaten this before but not recognized it. It is a cashew nut. The part at the top is called the cashew apple. This is a juicy fibrous fruit that is eaten locally either like an apple or juiced. The nut, is hanging off the bottom of this fruit.
Here on our farm, in northern Brazil, we have several types of cashew trees. We have dwarf trees and full size trees with fruit that is either yellow or red. The cashew nuts that they produce also vary in size, the most valuable being the larger ones. The smaller ones are either sold locally or ground into cashew flour or sold as broken nuts by local street vendors. The cashew tree is native to this area of Brazil and it is common to see them growing wild in scrub land near the roads. The locals will toss a twig up to a ripe cashew fruit to knock it down to eat. This technique is also employed for the mango season as well.
Raw Cashew nuts
There are many places that sell what they are calling raw cashews. The problem is, most have been steamed, or boiled . The reason for this is there is an acid inside the cashew shell.
This prevents anyone from opening the nut without them first cooking it. Even if you have heard of raw cashew nuts, this is not true. All the nuts have to be cooked in order to open the shell and release the acid. So raw cashews are in fact heated if not roasted. That said, I have read there is one business in Indonesia who have developed a technique using special tools to extract the cashew nut without the acid tainting it. I have seen the resulting burn of the acid in the cashew nut on the arm of my young neighbor. She was about 10 when it happened and It was very painful for her.
These are one of types we have growing at our home. The large whole nut has been cooked and roasted from optimal flavor.
The labor intensive procedure is what makes these nuts more expensive than many other nuts.
Traditionally prepared cashew nuts
When we had our first harvest of cashew nuts, shortly after arriving in Brazil, I was petrified at the way they were prepared. Being a native Californian, I have had the possibility of forest fires ingrained into me from a young age. it was almost terror that overcame me when I saw them roasting cashews here on a parched lawn with dry looking palm trees on a gusty day.
Our gardener here on the farm, began by washing out a 25 liter paint can and piercing holes in it. Then he began to build a fire quite close to the house and just explained they had always done it this way. The next thing I knew there was a roaring (albeit small) fire burning uncomfortably close-by. The cashews were spitting hot acid and the gardener, just kept stirring explaining that everything was under control.
Below is a video of how this process is done. It also shows how to make caldo do caju. This is stewed cashew fruits. This is also commercially available to buy here in Brazil. I hope you enjoy the video.
The price of cashews varies from year to year depending on the harvest. It is roughly about R$1.00 per kilo. (Brazilian Real) This is the price I was paid by a local buyer. I collect them and remove the nut from the fruit. Some twist off easily, others need either fishing line or wire to quickly separate the nut and fruit. Gloves should be worn otherwise your hands will get discolored. After removing the nut, I place them in the sun until they dry a bit, and then I bag them ready to go to the buyer.I normally wait until I have 15 to 20 kilos. My local buyer, who happens to be a shopkeeper close by, has a roomful of cashews waiting to go to the factory in Fortaleza, about 60 kilometers away.
Here we also eat the fruit. I will eat this straight from the tree or place this in my juicer. It is a very juicy fruit. It does take some getting use to. It leaves a dry almost astringent taste in your mouth. It is akin to cloudy apple juice. This can also be bought in those small drink boxes with the straws attached. Although I have seen the cashew fruit for sale locally, I don't believe it travels well because it can be easily bruised. I was shown how to eat this by my young neighbor. The trick is to lean out so the juice doesn't hit your clothes. It stains!
Below I have selected another video for you from Ghana. This is processing of the nuts and the fruit, this type of activity goes on here as well. It is labor intensive.
Nutritional value of cashews
Nutritional value per 100 g (3.5 oz)
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