For example, all-purpose flour lasts 6–8 months on the shelf but up to 1 year if refrigerated and 2 years if frozen (7). If you put your flour in the fridge, be sure to keep it away from moisture and water to prevent mold. This is best done by sealing it in an airtight container, such as a plastic bag or food bin (8).

Is it OK to use expired flour?

Long story short, yes. The first thing to know is that it will remain good long past its "best by" or "better if used by" date that can be found on the original container. Regular flour tends to last 6-8 months past its printed date, while whole wheat flour is typically only best for an extra 4-6 months.

CAN expired flour make you sick?

However, there is a small chance that eating expired flour might make you sick. “If rancid flour contains large amounts of mycotoxins, it can make you sick,” explains Knauer. ... Spoiled flour will smell slightly sour, but eating it typically doesn't cause any real harm.