Expiration & Storage Tips
When does corn flour expire?
Unopened packages of corn flour have a shelf life of about a year from the date marked on the package, provided it is stored properly. Once the package has been opened, the corn flour can last anywhere between six to eight months. Storing opened corn flour in the refrigerator can possibly extend its shelf life to about a year. Alternatively, if you decide to freeze it, corn flour can then last for up to two years without losing its quality.
How do you tell if corn flour is bad?
Discovery of bugs, larvae, or webs indicate an infestation, and the product must be discarded immediately. A change in the color, a musty smell, or a change in the texture can also suggest that the corn flour might be bad. Always check the corn flour carefully before usage, especially if it’s been stored for a long period.
Tips for storing corn flour to extend shelf life
• Keep the corn flour in a cool, dry place away from humidity.
• After opening, the flour should be stored in an airtight container or bag.
• If you notice moisture in the flour, make sure to transfer it to the refrigerator to prevent mold growth.
• Label your containers with the date of storage to keep a check on the shelf life.
• For longer storage, consider freezing the corn flour in a heavy-duty freezer bag. Remember to bring it back to room temperature before usage.