Roasted walnuts are typically good for up to a month after purchase if stored properly. However, it's best to consume them within two weeks for optimal freshness and flavor.
Here's a more detailed breakdown:
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Room Temperature: Roasted walnuts will typically last for about 1-2 weeks at room temperature if stored in an airtight container in a cool, dark, and dry place.
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Refrigerated: To extend their shelf life, you can refrigerate roasted walnuts. They can last for up to a year in the refrigerator.
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Frozen: Freezing roasted walnuts is another effective way to preserve them. Properly stored, they can also last for up to a year in the freezer.
Factors Affecting Shelf Life:
- Storage Conditions: Exposure to air, light, and moisture can accelerate spoilage. Always store walnuts in airtight containers.
- Roasting Method: The specific roasting method used can also impact the lifespan of the walnut.
- Original Quality: The quality of the walnuts before roasting will also influence how long they last.
How to Tell if Roasted Walnuts Have Gone Bad:
- Smell: Rancid walnuts will have a distinctly unpleasant, oily, or paint-like smell.
- Taste: A bitter or sour taste is a sign of spoilage.
- Appearance: Look for signs of mold or discoloration.
In summary: Roasted walnuts are best consumed within two weeks for optimal quality, but can last up to a month at room temperature if stored properly. Refrigerating or freezing significantly extends their shelf life. Always check for signs of spoilage before consuming.
