Peanut butter's shelf life varies depending on whether it's opened or unopened.
Unopened Peanut Butter
According to the National Peanut Board, unopened peanut butter typically lasts for 6-9 months when stored in the pantry. Refrigeration is not required for unopened jars.
Opened Peanut Butter
Once opened, peanut butter's shelf life changes. Here's what you need to know:
- Pantry Storage: Opened peanut butter will typically last for 2-3 months when stored in the pantry.
- Refrigerated Storage: Refrigerating opened peanut butter can extend its shelf life to 6-9 months.
Key Factors Affecting Shelf Life
While the above guidelines are helpful, several factors influence how long peanut butter remains good to eat:
- Storage Conditions: Temperature and exposure to air and moisture can impact shelf life.
- Natural vs. Processed: Natural peanut butters, with fewer preservatives, may have a shorter shelf life compared to processed varieties.
- Oil Separation: The presence of separated oil isn't an indication of spoilage but a natural occurrence, especially in natural peanut butters. Stir the oil back in before using.
Summary
Here’s a quick summary in a table format:
| Condition | Shelf Life | Additional Information |
|---|---|---|
| Unopened, Pantry | 6-9 months | Refrigeration not needed |
| Opened, Pantry | 2-3 months | |
| Opened, Refrigerated | 6-9 months |
Tips for Extending Peanut Butter Shelf Life
- Store unopened peanut butter in a cool, dark place, like a pantry.
- After opening, refrigerate peanut butter to extend its shelf life.
- Always use a clean utensil when scooping peanut butter to avoid contamination.
- If you notice any off smells, changes in color, or mold, discard the peanut butter.
By following these tips, you can enjoy your peanut butter at its best for as long as possible!
