Recommendations vary, but most sources say walnuts will last up to 3 months in the pantry, 1 year in the refrigerator, and 3 years in the freezer. However, shelf life varies depending on temperature, type of nut, and whether it is peeled, roasted, or whole pieces. The maximum shelf life for nut storage is two to three years maximum. So, if you're looking for items to pack in your 25-year emergency food supply, consider other healthy alternatives.
Nuts packed in a typical sealed bag have a shelf life of between six and eight months. Therefore, when buying in bulk, you will need to separate and store the nuts to preserve them before they can be consumed. This blog post will tell you in detail how to achieve this in three different ways. Most foods can be successfully stored in Mylar bags, but some are more suitable for long-term food storage than others.
Here are some examples of foods that are commonly stored and how long they will stay in good condition to eat them when stored in Mylar bags with oxygen absorbers. Walnuts last 6 months in the pantry 1 year in the fridge 1-2 years in the freezer.