Expiration & Storage Tips
When does wheat flour expire?
On average, unopened whole wheat flour lasts about to six to eight months past the printed 'best by' date while unopened white flour can last up to a year. Once opened, whole wheat flour will typically stay fresh for about three months, while white flour will last for about six months. Refrigeration extends the life of whole wheat flour to six months when open, and two years when unopened. Freezing flour, whether whole wheat or white, extends its shelf life to two years.
How do you tell if wheat flour is bad?
Telling if wheat flour has gone bad is pretty straightforward. The first sign is a change in colour - if your flour turns greyish or yellowish, it's probably time to replace it. If you notice an unusual smell, similar to that of spoiled oil which may remind you a little of play-dough, it's a strong sign the flour is off. Lastly, if you come across clumps or bugs in your flour, then it has definitely expired and should be disposed of.
Tips for storing wheat flour to extend shelf life
• Store your wheat flour in a cool, dark, and dry place to increase its shelf-life.
• After opening, consider storing your whole wheat or white flour in the fridge or freezer. This reduces the chances of rancidity and extends the shelf life.
• For long-term storage, freeze the flour in a sealed, airtight container. Just remember to let it return to room temperature before you use it in your baking recipes.
• It's a good idea to consistently rotate your flour stock to ensure the oldest flour gets used first, this is often referred to as the 'first in, first out' method.