Does Flour Freeze Solid In The Freezer?

You might not use flour as much as bakers do, but you want to make sure you have some in the pantry. How do you store it to keep it fresh whenever you need it? Some suggest storing flour in the freezer. But does flour freeze solid in the freezer? We asked various experts and found answers for you.

No, flour does not freeze solid in the freezer. Put your flour in an air-tight container and place it in your freezer for up to 2 years. Make room in your freezer, chest freezer, or cold room to store your flour. As long as the all-purpose or whole wheat flour does not come into contact with water, it won’t become solid.

Continue reading to understand the factors to be taken into consideration during storage. We've explained each factor in detail.


What makes flour stay fresh and not freeze solid in the freezer?

Lack of moisture and odors

Finely processed and whole wheat flours are dry and contain no moisture. Some flours are enriched and may contain oils. Once your flour is stored in air-tight containers and it doesn’t get in contact with any water, it will stay fresh for very long. Clumping or solidifying happens when moisture is present.

Flour easily absorbs odors and smells. Keeping the flour container closed tight when it isn’t in use for long periods of time prevents it to absorb other smells from nearby food items.

When flour absorbs moisture and smells, it becomes rancid, sour, or stale. Rancid flour can’t be used for baking at all. It's clumpy and attracts weevils. Remember, the lower the moisture in flour, the higher its quality. Store your flour away from strong smells such as onions.

Note: Your air-tight containers must be dry before you put and flour in them. Always use containers with no odors from previous products, preferably glass containers that don’t retain odors and smells.

No circulating air

When you want to store your flour for long periods, sieve it first and then put it in an air-tight container. Bugs can survive the milling process and continue to multiply if they are exposed to circulating air. Starve bugs found in flour by storing the flour in bags and containers that absorb oxygen before putting them in the freezer.

Cold temperatures will ensure that there is less than 5% oxygen available for bugs to survive. The packaging flour comes in, isn’t suitable for long-term storage. That's why sometimes pests can be found in the packaging.

Note: Lids shouldn’t be porous and should fit well. Use vacuum seal containers wherever and whenever it’s possible.

No warmth

Warm temperatures are conducive for bugs to hatch eggs and multiply. Flour can be heated to kill bugs. This is effective but not convenient for large quantities of flour. Hence, freezing is the best way to rid your flour of these pests.

Store large bags of flour in a cool cellar or better still in the freezer. Low temperatures in the freezer are lethal for bugs. Commercial storage rooms have low temperatures to store flour.

Absence of bugs

Start by purchasing your flour from a convenience store that you know handles food well. Even when chasing for bargains and especially buying in bulk, you need to buy flour that has been stored well. The flour should have been milled and packed in a clean environment.

Sometimes flour may not have visible bugs but rather a sort of web. This could mean there are eggs in it. You might not open large quantities of flour to inspect this. So put the flour bag in a cold place. The eggs will not have a chance to hatch and multiply in the cold freezer temperatures.

How long does flour last in the freezer?

A small paper bag with durum wheat flour on the table

Flour can last up to 2 years in the freezer when stored properly. It will be in perfectly good condition. This is because low temperatures don't allow the bugs to multiply. Natural elements aren't able to alter the flour's consistency. It will be good to note that bleached or processed flour can stay longer than whole wheat or enriched flour.

Do I need to thaw frozen flour?

Yes, you do. After being in the freezer for a while, flour needs time to thaw. Let the flour get to room temperature before using it. Cold flour may result in not-so-good pastries and cakes. The reason is that cold flour will affect the baking agents added to it. It could also slow the baking time of cakes and muffins.

Does freezing flour affect baking?

Yes, of course! Baking requires proper timing. So when your flour is not room temperature, it means you’ll add more time to your baking time. This won’t be good for your quick muffins and cakes. Rising agents such, yeast and baking powder won't activate as they should. This will result in flat cakes and loaves of bread.

Can you freeze self-rising flour?

Measuring flour in kitchen table

Yes, you can, but it isn’t wise to do so. Avoid freezing self-rising flour for long. The baking powder added to it will eventually lose its effectiveness. The cold kills the yeast and baking powder. The flour won’t rise as you would expect.

Does freezing flour kill bacteria?

Not really. This isn’t a reliable method to kill bacteria. Though cold will kill pests in flour, it might not kill the bacteria. Scientists have shown that bacteria can survive in extreme cold. The bacteria become dormant till the temperatures become warmer. When the flour thaws, they become active again.

To kill bacteria, you need to heat flour. Place some flour in a bowl in the microwave and heat to 160 degrees Fahrenheit. You can check the temperature using a food thermometer. High temperatures kill any germs and bacteria. This can be done by baking or cooking flour.

Does freezing flour kill weevils?

Yes! In fact, this is the most convenient way to eradicate weevils. Larvae, eggs, or adult weevils might be lurking in the store-bought pack. If you don’t keep flour for long periods, always place the flour in the freezer for just 48 hours before using it.

To store for longer periods, repack your flour in airtight containers and put it in the freezer. Any weevils hiding in it won’t survive the cold in the freezer. This is always a good way to store flour in warmer climates.

In Closing

It is now evident that flour only solidifies if it gets in contact with moisture or water. Experts have given us a breakdown of how to keep our flour safe and fresh. Airtight containers are a must-have for longer storage. Keeping your flour in the freezer happens to be the most effective way of storage.

Flour is a staple and should be stored properly. Entertain guests with fresh bread or pastries from your kitchen anytime. Store your flour in the freezer to save money!

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