Expiration & Storage Tips
When does cassava flour expire?
When stored properly, unopened cassava flour can last up to two years past the printed date on the package. Once opened, it's best to use within one year, although its quality may start deteriorating before this point if not stored correctly. Cassava flour doesn't freeze well so it's not a common method of storage in households.
How do you tell if cassava flour is bad?
Bad cassava flour will change in texture and color, often becoming clumpy and darker. It may also develop an off or sour smell. If the flour shows signs of moisture, that's a clear sign it has been contaminated and it's time to throw it out. As with many other types of flour, if you see bugs or any signs of bugs in the bag, there's no saving it - discard it immediately.
Tips for storing cassava flour to extend shelf life
• Keep your cassava flour stored in a cool, dark, and dry place, like a pantry or cupboard.
• Try to avoid changes in temperature and humidity. Especially do not store in the refrigerator where it can absorb moisture.
• Because cassava flour tends to clump naturally, consider storing it in an airtight container rather than the bag it came in for long term storage.
• Use a dry measuring scoop every time you use the flour. Introducing moisture into the container will accelerate spoilage.
• Always use clean utensils to handle the flour to minimize the introduction of bacteria and other contaminants.
• Once the bag is opened, use the flour often to keep it from going stale.