It is used in so many things that it is not even possible to name them all here. All-purpose flour is also a primary source of dietary fiber, as pointed out by Very Well Fit.
Regardless of the reason, flour left like this may not be up to par. As a result, you might have found yourself wondering, does all-purpose flour go bad? If so, you are at the right place. Carry on reading to find out more. First of all, yes, all-purpose flour does go bad. However, if you properly store it, you can extend its Best By date by a considerable amount.
So how does flour spoil? It turns out it's not the starch in the flour that goes bad but the protein in wheat, also known as gluten. As Karin Allen, a food quality specialist, writes for Utah State University, "when the proteins that normally form gluten, are exposed to air, they can change significantly.
These changes limit the amount of gluten that can be formed," making it harder to create those stretchy, starchy structures than it is with fresh flour and giving you a more crumbly final baked good. As Gwen Adams, marketing coordinator and food writer at King Arthur Flour , explains in an email to Extra Crispy, "The flour might also not perform at its best, meaning bread might not rise as high and cakes may sink.
The best way to tell if you're using old flour is also the most obvious: Look at the best-by date. But if you've forgotten when you bough that bag of flour or you've transferred your flour from its original packaging into a separate container, the next best way to tell if your flour has gone bad is to smell it. Though the scent is typically fairly subtle, you should be able to pick up on it. However, there is a small chance that eating expired flour might make you sick.
Mycotoxins are toxic compounds produced by certain kinds of mold. Luckily, flour with that much mold would likely have a strong sour smell that would hit as soon as you opened the container, so you'd probably chuck in pretty quick. The bottom line: White flours have a long shelf life one year at room temperature and should be stored in airtight containers. Spoiled flour will smell slightly sour, but eating it typically doesn't cause any real harm.
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Sign up for our email newsletter! Enter Email Sign Up. Does Flour Go Bad? By Kaitlyn Berkheiser Flour is a pantry staple made by grinding grains or other foods into powder. Thus, you may wonder how long it's safe to keep flour. Types of Flour Flour is often categorized by its level of processing, which affects its shelf life. Storage Methods What's more, the shelf life of flour depends on how you store it. Summary Flour's shelf life depends both on the type of flour and storage techniques you use.
How to Tell If Flour Has Gone Bad Most packaged flours have expiration dates — also called best-by dates — printed on the bag to indicate how long they'll stay fresh. Summary The best way to tell if flour has gone bad is to smell it. Risks of Using Expired Flour When flour goes rancid, its molecular structure changes — which may produce harmful compounds. On the other hand, moldy flour can be dangerous, as well as foul-tasting. Thus, it's always best to throw out your flour if it smells bad or shows signs of mold.
Summary Eating small amounts of rancid flour likely won't harm your health, but moldy flour may be incredibly dangerous due to its levels of compounds called mycotoxins.
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