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Have you ever wondered what a cashew looks like straight from the tree? The farm where I'm staying in India has dozens of cashew trees growing (they're harvested for good money).
One day, while exploring the farm, a cashew fruit dropped from a tree and almost hit me on the head (maybe if it actually hit me I would have discovered a universal law).
I thought since the owner of the farm had showed me how to "eat" the fruit, I would record a short clip to show you how that's done. Plus, if you've never seen where cashews come from (I hadn't before coming to the farm), you might find this quite interesting.
While the cashew nut is encased within a shell, the fruit itself is eatable. Between the shell and the cashew nut lies a black nasty chemical substance that can cause hives (and worse).
I learned just how bad this stuff was after filming this video. According to Wikipedia, "The seed is surrounded by a double shell containing an allergenic phenolic resin, anacardic acid, a potent skin irritant chemically related to the more well known allergenic oil urushiol which is also a toxin found in the related poison ivy."