Can You Compost Flour? How?

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Quick Answer: Can You Compost Flour?

Yes, you can compost flour but in moderate amounts. It is recommended to open the bags and sprinkle them on the compost heap. Mix the dry flour into the compost with kitchen scraps to speed the decomposition process and deter unwanted pests. You may freeze the flour if infested with weevils before adding them to compost.

This is a complete guide on composting flour with ease at home.

Read further to know more!

Can You Compost Flour?

Yes, you can compost different types of flour, including wheat, almond, buckwheat, chickpea, coconut, and rice flour but in small amounts. They break well in the compost pile as they are plant-based.

Do not throw the flour in a big bag into the compost pile. It is preferable to open the bag and sprinkle them into the compost pile.

You may mix the flour with other organic ingredients to deter undesirable visitors to the compost pile.

Also, a lump of flour is dense and may reduce the airflow in your compost pile. So, keep stirring the pile to reduce the issue.

How To Compost Flour With Ease?

The flour and their paper bags may be composted in a regular compost pile as they break down easily. It is preferable to sprinkle the flour in a thin layer to avoid lumps.

The different steps in composting flour are as follows –

1. Add flour to the compost pile

You may sprinkle flour into the compost pile. Take care not to add large quantities of flour to a moist compost pile. It may clump and block air from circulating.

One tip is to add flour in small amounts over a few days.

You may also mix them with wood chips. It creates air pockets for oxygen to flow freely. Ensure that the flour is not infested with weevils.

2. Mix well with green materials

Mix the flour with green materials. It is preferable to bury them in the center of the pile to prevent unwanted intruders.

Turn the pile- You may occasionally turn the pile to aerate and fasten the decomposition process.

The flours may take on an average of three to six months to decompose.

Check out this experiment if flour can be composted:

Can You Add Flour To The Worm Bin?

Yes, you can add flour to the worm bin but in moderation. They are a source of protein, iron, and trace minerals for worms. They also work as bedding in the worm bin to boost microbial properties.

A typical worm flattening diet consists of one part whole wheat flour with five parts chicken layer pellets, two parts wheat or rice bran, two parts alfalfa pellets, one part agricultural lime, and one part powdered milk.

One problem is that the moisture in the worm bin may turn big lumps of flour into dough balls. It will be avoided by the worms as they are impenetrable.

You may add the flour to the worm bin to coat the surface and spray with water. This will prevent them from sticking to the worm’s skin.

Can You Compost Flour Bags?

Yes, you may compost flour bags made from multi-walled unbleached paper. You may shred them before adding them to the compost pile to speed up the decomposition process. Also, you may wet the bag pieces to facilitate the process.

You can not compost flour with plastic lining or bleached paper.

You may tear the flour bag if not sure of the material. If they tear down easily, they are made of paper and maybe composted.

Is Flour Good For Plants?

Yes, flour contains nutrients, including potassium, magnesium, manganese, sodium, calcium, iron, and protein that are beneficial for the plants. They may also be used to control pests.

The flour will suffocate the aphids, deter grasshoppers, and gnats from chewing your plants. Some gardeners dust the insects and plant leaves with flour.

Use caution when using freshly moistened flour as it may prevent the exchange of gases and plug the leaf stoma.

What Are The Alternate Ways To Composting Flour?

You may expired flour to make paper glue or modeling dough. Some make paper mache crafts, chicken feed, and dog biscuits with old flour. You may also use it to polish the copper.

You may freeze the flour if infested with weevils to kill them. Sprinkle a bit of all-purpose flour in the garden to deter grasshoppers, aphids, or other garden pests.

Another use of reusing flours is to make bird treats. Mix the old flour with bird seeds, shape them into balls and bake for 20 minutes.


Is flour brown or green material?

Some consider flour as a brown material due to its starchy composition and dryness. But, some consider it a green material due to its protein content. Different flours have different protein content. The flour is considered brown if it has a lower protein percentage and less nitrogen.

Can you compost rancid flour?

Yes, you may compost rancid flour. But, you may freeze the flour at 0 degrees F for three days if infested with weevils. The frozen flour will kill the pests and maybe tossed into the compost pile in small amounts. Larger quantities may require professional fumigation.

Bottom Line

I hope this guide has provided certain tips on how to compost flour in the right way.

Also, let us know your thoughts on composting the home.

Do share this with your loved ones who love to compost!