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Which compost bin really works?

Updated on June 23, 2013


How does composting work?

Composting is a natural process where vegetable matter breaks down and decays. Microbes in soil and circulating air help this process to occur faster, so adding a little soil and ensuring there is air circulation speeds up the process.

Waste production aroun d the globe is a mayor contributor to greenhaouse gas emissions.

When organic waste is sent to rubbish dumps, it often putrefies instead of decaying. Putrefying waste creates methane, a greenhouse gas which is nine times more damaging than carbon dioxide.

50% of household waste is organic waste, including fruit and vegetable and food scraps, and lawn and garden clippings.

Aerobin was invented in Australia to create an effective and easy to use composting system. It has an aerating tube up the middle of the bin which allows air to enter the bin from underneath, promoting aerobic bacteria.

Aerobin runs up to 10 degrees hotter than other composting bins, speeding up the composting process.

It is fully sealed, preventing animals and large insects from getting inside.

The hotter temperatures generated by Aerobin kill weed seeds so you can put seedings weeds in and the bin without risking that your compost will spread the weeds.

How to get started . . .

What sizes are available

Aerobin comes in a 400 litre size and now in a new 200 litre size.

Anyone with a sizeable garden or vegetable garden would use a 400 litre bin. I bought the 200 litre bin and it is sufficient for all my kitchen scraps and most of the garden waste.

Why Aerobin?

There are several important benefits to Aerobin

  1. The product is modular, therefore compact to transport and easy to put together.
  2. It seals well enough to keep out animals
  3. It allows air to rise up through a pipe into the composting material in the bin
  4. It has sides which lift off for easy removal of the finished compost
  5. It has a tube which releases liquid fertiliser which provides you with a free and constant supply of fertiliser for the garden
  6. The compost does not need to be turned.

What about the smell?

Composting vegetable matter should not smell bad like a rubbish dump. It should smell sweet and earthy. If your compost stinks, it could be too wet. Too much wetness can kill the ‘good’ microbes which do the work of breaking down the compost and it will putrefy instead of decaying.

The Solution

Allowing more air to circulate will allow the compost to dry out and allow the ‘good’ microbes to get to work.

If your Aerobin is smelling, add a higher proportion of ‘brown material’ eg torn pieces of waste cardboard, dead leaves etc. to ‘green waste’ such as vegetable scraps.


The Aerobin is delivered as a ‘flat pack’ and has instructions for assembly.

How long will it take to make compost?

The first load of compost will take about 3 months to make compost. After that you will have a continuous supply.


Do not put meat, animal fat or animal products in your Aerobin, except for egg shells.

Where can I buy one?

Aerobin is available at most hardware and gardening shops.

For more information see the Aerobin website and details of outlets in your country.

Aerobin is available in Australia, Austria, Bahrain, Canada, France, Germany, Greece, Iraq, Italy, Japan, Kuwait, Libya, New Zealand, Oman, Portugal, Qatar, Saudi Arabia, Singapore, Spain, Switzerland, UAE, UK, USA, Yemen.

Swinburne University Aerobin Study Results

Aerobin - GEM Australia Pty Ltd

The Aerobin has been tested and proven to achieve the highest performance in composting against world ranking compost devices by the Swinburne University of Technology, Environment and Biotechnology Centre, Melbourne and has subsequently obtained worldwide endorsements.

The Aerobin is the answer for those wanting a home composting system that is quick, easy, environmentally friendly, works year round and overcomes the problems that many people have experienced with Composting.

Compost Use Mitigates Climate Change

It is well documented that preventing organic residues from going to landfill avoids methane emissions, and also preserves organic carbon and nutrients for beneficial use in land management and food production. It is equally well known that on-going use of compost improves physical, chemical and biological soil properties, and delivers a wide range of agronomic and environmental benefits. By supplying both stable and labile organic compounds, as well as plant nutrients and beneficial organisms, the agricultural and horticultural use of compost also supports climate change mitigation on two fronts:

  1. Removal of atmospheric carbon through soil carbon sequestration, achieved directly through storage of compost carbon, and indirectly through enhanced plant growth, which in turn contributes also to increased soil carbon levels;
  2. Reduction of greenhouse gas (GHG) emissions, e.g. through reduced production and use of chemical fertiliser and pesticides, and through reduced irrigation.

The benefits of using compost for mitigating climate change

Across Australia an estimated 3.7 million tonnes (Mt) of garden and food organics and a percentage of wood residue were diverted and recycled from landfill in 2007–08, preventing methane generation equivalent to ~ 4.28 Mt CO2-e. Methane is a potent greenhouse gas (21 to 25 times as potent as carbon dioxide) that is normally produced when organic materials break down in landfill. The drop in greenhouse gas emissions from the waste sector has largely been attributed to the rise in landfill gas capture measures (~4.5 Mt CO2-e in 2007–8); however, what goes unreported is the fact that emissions figures would be almost twice as large if the organics which are currently recycled were to be landfilled instead.

If only 50% of the 9.68 Mt (2007–8 figures) of organic residues sent to landfill was recycled, methane generation of more than 5 Mt CO2-e per annum could have been prevented. This would have brought methane generation savings through organics recycling activities to around 10 Mt CO2-e in Australia.

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