Weevils in Flour: Can You Remove Them?

The answer is yes, you can remove weevils from flour, but it takes some effort. Weevils are small, brown insects that lay their eggs in grain products like flour, rice, and pasta. Once the eggs hatch, the larvae feed on the grain, leaving behind a trail of webbing and excrement.

Here are some steps you can take to remove weevils from flour:

  1. Freeze the flour. Place the flour in a freezer-safe bag or container and freeze it for at least 4 days. This will kill any live weevils and their eggs.
  2. Sift the flour. After freezing, sift the flour through a fine-mesh sieve to remove any dead weevils, eggs, or webbing.
  3. Discard the infested flour. If you see a lot of weevils or webbing in the flour, it’s best to discard it and start with a fresh bag.

Here are some additional tips for preventing weevils in flour:

  • Store flour in airtight containers. This will help to prevent weevils from getting into the flour in the first place.
  • Buy flour in small quantities. This will help to ensure that you use the flour before it has a chance to become infested.
  • Inspect flour before you use it. Look for any signs of weevils, such as small brown insects, webbing, or excrement.
  • Clean your pantry regularly. This will help to remove any food debris that could attract weevils.

Even if you follow these tips, it’s still possible to get weevils in your flour. If you do, don’t panic. Just follow the steps above to remove them and prevent them from coming back.

Additional Information about Weevils in Flour:

  • Weevils are not harmful to humans, but they can damage your food.
  • Weevils are attracted to moisture and warmth.
  • Weevils can lay up to 400 eggs in their lifetime.
  • Weevils can live for up to 6 months.


Q: Can I eat flour with weevils in it?

A: Yes, you can eat flour with weevils in it, but it may not taste very good. The weevils themselves are not harmful to humans, but they can leave behind a trail of webbing and excrement, which can make the flour taste and smell bad.

Q: How can I prevent weevils from getting into my flour?

A: The best way to prevent weevils from getting into your flour is to store it in airtight containers in a cool, dry place. You should also inspect your flour before you use it to make sure there are no signs of weevils.

Q: What should I do if I find weevils in my flour?

A: If you find weevils in your flour, you can either freeze the flour to kill the weevils and their eggs, or you can discard the flour and start with a fresh bag. You should also clean your pantry to remove any food debris that could attract weevils.


Weevils are a nuisance, but they can be removed from flour with a little effort. By following the tips above, you can keep your flour weevil-free and enjoy your baked goods without worry.

The struggle with weevils in rice and flour would last a long time. These repulsive tiny insects are a nuisance to anyone who purchases grains in large quantities. They can take over and proliferate before the desire to bake arises once more. Weevils in my pasta, in the flour, in the cabinet corner joints

Black flecks happen. There are a lot of black particles to deal with when teaching kids how to wash dishes. After wiping them out of the bowl, I make my artisan bread without kneading. The black flecks, however, remained on top of the flour when I returned from scooping the flour to scolding my dogs for barking and retrieving the yeast I had forgotten. And they moved. I paused, yeast still in hand, and leaned close. Little legs wiggled beside those black flecks.

Trembling, I listened to the visitors chatting in the living room while I quietly drained the water. Most of the insects and their larvae disappeared into the sink. I rinsed the rice two more times, shaking it with my hands to lift any bugs to the surface. I cooked the rice after noticing that nothing else was floating on top and that there were no black flecks in it. Before serving, I stirred the rice and looked close. No black flecks. I let out a sigh of relief, put on a friendly smile for my guests, and invited them all to dinner.

For a while, I had control over them. I would purchase flour in 25-pound bags since they are among the most affordable. I divided the flour into half-gallon mason jars and sealed them in the oven, as I knew my family wouldn’t remember to screw on the lids. This is an example of acceptable food preservation for dry goods. Except for the jar that is being used right now, I kept every jar in the canning room. And after removing my flour with a spoon, I tightly twisted the metal ring.

I was making cheesecake. Thick, white, flour-free cheesecake. And even though I felt like using the stand mixer, I reached for the handheld one that was in the cabinet next to the baking supplies instead. It’s just dust and a few drops of liquid, but I never gave the bits of dough and flour that fly up into the gears any thought. Nothing to worry about. However, black weevils were sprayed into my bowl by centrifugal force as soon as I turned the mixer on and inserted the beaters into my cream cheese and eggs. The beaters immediately folded them into the cheese. My forehead tapped against the cupboards. I wouldn’t miss those black flecks in the cheesecake unless I could cut some fresh blueberries into it. Carefully folding through the batter, I picked out little bugs. It took twice as long as the cheesecake’s whole construction.

found small insects in my flour cabinet – What to do?

I discovered tiny insects in the base of my flour cabinet—like sticks that are about 1/8″ long and move. It did not look like it was able to fly. They were all just circling around at the base of the cabinet—roughly one hundred of them. I threw out all of my exposed flour, parts, and grain.

In addition, I cleaned the entire cabinet with Tilex, which is essentially Clorox. I used to keep all my flours in the bag. From now on I will keep them in Seals containers. I hope this helps. Or I may just keep them in the freezer.

I have a bunch of canned food (still unopened). I have some pasta that is still unopened. However, I’m not positive if any of the insects are present on the exterior surface. Simply put, unless they are on a very light-colored surface, they are too small to be seen with the human eye.

What do you guys recommend? thanks

Bugs In The Flour Can It Be Saved?


Should I throw out flour with weevils?

Flour weevils are safe to consume — to a point Lightly infested products — which many of us have in our cupboards without knowing — can be consumed safely. If you’re concerned about flour weevil consumption, it’s recommended that you heat the flour up before eating it, or you can freeze it for four days.

Does sifting flour get rid of weevils?

Sifting flour through a fine-mesh opening will separate out the insects, but tiny eggs can pass through with the flour. However, impact machines are effective in destroying all insect life stages.

How long can you keep flour before it gets weevils?

Storing flour in airtight plasticware or a glass mason jar will keep it fresh for up to 10 months and keep pests like flour bugs at bay. If you have the tools to vacuum seal your flour, it can last for up to two years.

How do weevils get into a sealed container of flour?

Weevils can chew through cardboard and plastic, which means they can also get into unopened packages of food. Get rid of excess food packaging such as cardboard boxes if the food is in an airtight bag that hasn’t been contaminated. Weevils can hide in packaging and re-emerge later.

How do you get rid of flour weevils?

Use a vinegar spray as an effective and natural way to get rid of flour weevils from pantries. Mix equal parts of water and white vinegar in a spray bottle to make a vinegar flour bug spray. Spray the solution on shelves and surfaces and leave it to dry. The pungent vinegar smell will soon disappear.

Can you eat weevil infested flour?

In fact, using weevil infested flour for cooking or baking means that it will be heated to a point where it’s safe to consume again, as the heat kills both weevil eggs, larvae, and adults (via Grove ). Of course, few are probably excited about the prospect of chowing down on weevils, so prevention is key.

Can you freeze flour to kill weevil eggs?

Freeze flour as soon as you bring it home from the grocer. Place the bag of flour in a freezer bag and freeze it for at least a week to kill weevil eggs. Keep it in the freezer until you need to use it, or pour the flour into an airtight container before storing it in the pantry.

How do you get rid of weevils in a pantry?

Vacuum and wash your pantry. Remove the food from your pantry shelves and use a vacuum attachment to suck up any loose bits of food or flour. Take a wash cloth dipped in soapy water and wash all of the shelves and anywhere that there may be spilled food. If you’ve found weevils in other rooms of your house, vacuum them up.

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