Making Compost Indoors – How To Compost In The Home

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By Amy Grant

In this day and age, most of us are aware of the benefits of composting. Composting provides an environmentally sound method of recycling food and yard waste while avoiding filling up our landfills. When you think about composting, an outdoor bin is what likely comes to mind, but can you compost indoors? You betcha! Anyone, just about anywhere, can compost.

How to Compost in the Home

Exciting, isn’t it? Now the question is, “how to compost in the home?” It’s really very simple. First you must choose a composting vessel or bioreactor suitable for making compost indoors. These containers are much smaller than the outdoor bins, so they need to be appropriately designed to provide the perfect conditions for aerobic heat production, which is responsible for breaking down the food waste.


The bioreactor must have adequate moisture, heat retention, and air flow for decomposition of your organic leftovers when composting indoors. There are a couple of basic bioreactors suitable for use when making compost indoors. A 20-gallon garbage can bioreactor will create finished compost within two to three months and can be used when composting indoors, as can a worm bin.

Using a worm bin for indoor composting is ideal for say, an apartment dweller. Decomposition is done by redworms and microorganisms. Temperatures when vermicomposting do not get as high as with other bioreactors. The resulting worm castings can be used to fertilize your apartment houseplants. These little guys really go to town and it is simply amazing how quickly they turn your unwanted leftovers into premium compost. Kids love to learn about this too; in fact, vermicomposting can be found in many schools. Supplies for vermicomposting can be found online or in many garden centers.

Other Information about Making Compost Indoors

Now that you have a bioreactor or worm bin, you may be wondering what to put in it. All food scraps with the exception of bones, meats and oily fats may go in the compost. No meaty items go in the compost due to the resulting less than pleasant aroma and increase in the possibility of attracting rodents. Toss in your coffee grounds and tea bags, but no dairy for the same reason as meat.

Additionally, fading cut flowers or other detritus from houseplants can go in the compost or worm bin. Keep the sizes of things you are tossing in the compost about the same size to facilitate the decomposing process. In other words, don’t toss in an entire acorn squash with mostly cucumber peels and coffee grounds and then wonder why it isn’t breaking down.

Turn the compost pile on occasion to keep it aerated, which will increase the rate at which it is breaking down. Turning the indoor compost will also reduce the chance of a putrid stench noticed by the neighbors in 2B, by promoting rapid decomposition.

Okay, go to it, knowing that you are doing your part to save the planet one orange rind at a time.

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