Expiration & Storage Tips
When does chunky peanut butter expire?
An unopened jar of chunky peanut butter can last for about a year past the best by date printed on the package. Once it's opened, it should be consumed within 3-4 months if stored in the pantry. However, you can extend its shelf life to 6-9 months by refrigerating it after opening. If frozen, chunky peanut butter can last indefinitely, but for the best quality, try to use it within 6-12 months.
How do you tell if chunky peanut butter is bad?
Spoiled peanut butter may develop an unpleasant smell, taste and texture. If you notice a rancid or off-putting scent when you open the jar, it's likely gone bad. The taste may also be bitter or sour. In terms of texture, if it becomes overly hard or dry, or if you see any signs of mold, it's not safe to consume. In these cases, it's best to discard the jar immediately.
Tips for storing chunky peanut butter to extend shelf life
• Always seal the jar tightly after each use to prevent exposure to air, as it can cause the peanut butter to dry out and spoil.
• Store the jar of opened chunky peanut butter in a cool, dry place, like a pantry or a kitchen cupboard away from the stove or dishwasher to avoid exposure to heat.
• If you don't frequently use your peanut butter, consider storing it in the refrigerator after opening to extend its shelf life. Just remember to let it sit out a bit before using to soften.
• Freezing chunky peanut butter can extend its shelf life indefinitely. To freeze, give the jar a good stir to evenly distribute the oils, then seal tightly and place in the freezer. To use, thaw in the refrigerator or at room temperature.