I hate it when I'm eating pistachio nuts and I find one that has only opened a tiny bit. This quick technique, taught to me by my friend Lloyd, will open these problematic legumes every time without risking sore fingernails or broken teeth.
When you encounter the pistachio nut that is just barely open, the first instinct is to use your fingernails to pry it open, crunch it with your teeth, or just swallow it whole. But resist those urges and read on to learn this handy trick.
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Step 1: Use the Right Tool for the Job
You should always use the right tool for the right job, and lucky for you, you already have a whole pile of the right tool already near by when you are eating pistachio nuts.
Grab a discarded 'pistachio nut shell half', and stick the top of the small end into the partially-opened pistachio.
Step 2: Now Twist Like You've Never Twisted Before
With the shell top inserted into the crack, twist the shell half like you would turn a screwdriver. Clockwise or counterclockwise directions both work equally well. As you twist, the shell will separate with a loud report as if by magic.
Step 3: Eat the Conquered Pistachio Nut Meat and Enjoy Your Victory
You did it. Sure, anyone can open a pistachio with a LeatherMan, hammer, or laser cutter. But without using any of those traditional pistachio-opening tools, and without risking injury of your fingernails, teeth, or your pride, you beat the pistachio at its own game. You got to the prize. Now eat it. Savor the morsel that was previously unreachable by humankind.
Next time you're sitting around with friends eating pistachios, show them this trick...and remember that you learned it on Instructables.