WalnutsShelf Life, Storage, and Spoilage Guide
Pantry
6 months
Store in a cool, dark, dry place in an airtight container to prevent rancidity and absorption of odors.
Refrigerator
1 year
Store in an airtight container or heavy-duty plastic bag to protect from moisture and odors. Refrigeration extends shelf life significantly.
Freezer
1 year
Store in a heavy-duty freezer bag or airtight container. Freezing is the best way to preserve freshness and prevent rancidity for long-term storage.
Signs of Spoilage
- Bitter or sour taste (rancidity)
- Off-odor (smells like paint thinner or chemicals)
- Mold growth
- Shriveled or discolored appearance
Room Temperature Safety
The 'Danger Zone' for food is between 40°F (4°C) and 140°F (60°C), where bacteria can multiply rapidly.
While walnuts are shelf-stable, prolonged exposure to warm room temperatures can accelerate rancidity. For best quality and to prevent spoilage, store in a cool, dry place or refrigerate/freeze.
Safe Handling
Always wash hands before and after handling food.
Store nuts away from strong-smelling foods, as they can absorb odors.
Check for signs of spoilage before consumption.