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How to shell pine nuts
Gather your unshelled pine nuts.
If you have simply purchased shelled pine nuts, then you can skip this step. However, if you're looking to gather your own pine shells, then you should know that it's a lengthy process that can take months.
Here's what you have to do : For the gray pine, you should collect the cones in september or october and keep them in an airy, but dry place, such as a garage. The cones should still be tightly closed at this point.