UNopened pistachios

[Sophia.]

does anyone have a good way to open pistachios that are sealed shut? I'm not talking about the ones with tiny little openings--I can usually pry those apart with my nails--but the ones that are completely closed. what makes them open in the first place? I have a bag with an extraordinary number of unopened nuts, and it's frustrating me. thanks!

[Veggo]

Pistachios were the comfort food of my best college buddy (and the class trickster in the 70's).
Any quantity of pistachios contains a few nuts that don't have a single crack from which to begin the nail-prying exercise. I began saving the crackless pistachios, like pocket change, for years, with no particular objective except hope and opportunity.
About 12-15 years after college, my buddy was hospitalized for a non-life-threatening condition. I visited him with a large zip-lock of pistachios, and he sat up and beamed like a cheshire cat and his eyes got as big as saucers.
Not a one of them had a single crack.
Ah...payback.

[givemecarbs]

OMG Veggo! A tale of revenge chowhound style! Sounds like an idea for a whole thread.

[dijon]

the dog gets those

[danhole]

regular nutcracker, or break gently with some needle nose pliers.

[givemecarbs]

I used to bite those kind open. Then I decided it was bad for my teeth. Hmm. Might try something with a hammer but that could get messy. Let us know if you figure out a good way to open them because I have this problem too once in awhile.

[BiscuitBoy]

They haven't ripened, or matured, or whatever you call it with a nut. Probably not worth eating anyway