Should you dump any kind of organic waste on your compost bin? Nope.

Photo by Edward Howell on Unsplash.

Not all kitchen wastes are created equal. It may feel great to reuse household wastes by putting them in the compost bins instead of the landfill, but not everything is suitable for composting. Here are some things that people mistakenly add to their compost containers that you must avoid:

Bread products

Cakes, pasta, and other baked goods are some wastes you should not add to your compost as this can invite pests like unsavory insects. You wouldn’t want your area to be filled with pests.

Cooking oil

Pouring oil into your compost bin is not recommended as this creates an imbalance in the compost’s moisture. This also attracts animals and insects due to its smell.

Diseased plants

If you add diseased plants to your bin, they might transmit fungus or bacteria and will mess up your compost pile and potentially contaminate your healthy plants instead of fertilizing them, so discard them instead of saving them for composting.

Heavily coated or printed papers

This includes magazines, catalogs, printed cards and printed or metallic wrapping papers, especially the kind embossed with foil as foil doesn’t break down. Chemicals from printed ink aren’t very helpful for your compost pile, either.

Human or animal feces

Feces poses health threats, especially if you’re producing food in your garden or farm. Wastes from non-carnivorous pets are less risky. But to be safe, stick to vermicomost if you’re gardening on a small scale.


You should not put bones, fish, animal fats, and blood as this lures pests in as well.

Dairy goods

Rodents love dairy products just like us, so adding them on your compost heap can lead to the presence of more rodents. Avoid adding dairy food like milk, cheese, yogurt, and cream.


Rice, especially cooked, will be a breeding ground for bacteria if added in your compost heap, while raw rice can attract pests.


If you aren’t sure where the wood comes from or if you know that it was untreated, avoid using them as well.


Don’t throw weeds into your compost bin as these plants would rather grow than decompose in your compost pile.

Used personal items

Tampons, diapers, and things with human blood or fluids also entails health risks. You must not put them in your compost containers just for the sake of recycling them.  


Walnuts are also not preferred for compost as they contain an aromatic compound called juglone that is toxic to some plants. 

There are other materials that are potentially toxic additions to your compost pile and things mentioned above are just a few items on the long list. To make sure you’re composting properly, keep researching, and don’t forget to ask compost experts for tips and recommendations to save you from any hassle.

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