Does Flour Go Bad? The Surprising Truth!

Does flour go bad? That’s a valid question. Some stuff in the kitchen has long, long shelf life. Now, I know, you happen to see a long-forgotten bag of flour, and you start to wonder how long does it last before it expires. Well, let’s see what science say about that. Let’s read some facts about it.

Let’s broaden our knowledge a bit and answer some of the following questions first. Where does flour come from? What are the different types of flour? How can I tell if the flour has gone bad already? How do I store flour? Let’s start with the basics first. Read on!

Where Does Flour Come From?

When I was young, I thought all flour came from wheat (was that stupid?) Well, flour is a powder made from ground dehulled grain and some roots. Yep, grain and some roots! Wheat flour, soy flour, almond flour, rice flour, oat flour, cassava flour, and many others. These are some of the common flours you may see in the grocery. Wheat, above all, is the most common type of flour.

Though they are all flours and you can use them to substitute any flour in your recipe, each type has a distinct taste and characteristic when used. But, there will be some slight difference in your output if you change the type of flour you use!

What are The Different Types of Flour?

Aside from the different types of grains used in flour, there are some more archetypes of flour that you see on recipes. Again, each type has a different characteristic and can be best used in some specialty recipes.

Does Flour Go Bad?

Hmm. So, you want to know if you can still use that forgotten bag of flour? Here it goes. Flour does go rancid. Whole wheat flour lasts shorter and will start to get rancid at about six months. Regular milled flour lasts longer and up to a year in the pantry.

But the rancidity is not the real issue at all! Let me tell you right now that you should throw away that ancient flour! Your real concern is flour mites! Flour goes bad when mites start to infest them! Please, don’t hesitate to throw them out!

And if you happen to confirm that mites have infested your historical flour, schedule and perform a thorough investigation of the nearby dry loose powdery ingredients stored adjacent to it. They might have caught some mites too!

How Can I Tell if The Flour Has Gone Bad Already?

If you have a keen sense of smell, you can easily smell rancid flour. If it’s in the early stage of becoming rancid, it can be a little difficult to tell by smelling. But, when you start to cook them, you will smell it, and you will hate yourself for buying flour in excess!

Take a close inspection to check for mites. Use a magnifying glass if necessary because they are real, really tiny. Look for specs of uneven discoloration. Rub some between your thumb and index finger and give it a sniff. Flour mites are smell has a hint of mint when they are squished.

How Do I Store Flour?

One good way of storing flour is placing them in airtight jars away from light and moisture in your pantry. Placing them inside the fridge will not give mites a conducive environment to thrive and multiply!

If you are concerned about four getting moisture in the fridge, throw some freshness packets or silica gel in them. This will absorb moisture and will prevent it from forming in your jar and effectively preventing moisture contamination!

Last Words

Flour is a common ingredient you can easily buy at the grocery. So, if you are wondering does flour go bad, if you are not sure how long that opened box of flour is sitting in your cupboard, just buy some on your next visit to the grocery. Saves you from thinking if your recipe will taste rancid or will have dead insects on them!