[header] How to store nuts [title] Freeze away possible pests. [step] If you are storing nuts harvested from your own yard or purchased at a local market, you may need to freeze the nuts for two days prior to storing them to kill off any pests or eggs. [substeps] Insect eggs and larvae thrive at room temperature. 
Your eye may not see any pests on the surface of the nuts you collect, but that does not mean that there are no pests to be found. As such, fresh nuts need to be sterilized via freezing.