The Green Johanna is a top-performing hot composter that turns food waste - including cooked food, meat, fish and dairy - and garden waste into quality compost within months.

Designed in Sweden and made in the UK from 100% recycled plastic, it has an expected lifespan of 10 years or more. 

The Johanna’s patented airflow and ventilation systems create optimum conditions for a busy eco-system of composting micro-organisms to digest waste, releasing energy as they do.

One Johanna is designed to cope with the average food waste of a household of five and compostable waste from an average garden. A free aerator stick comes provided.

Design features

The Johanna is made up of easily-assembled sections that form an enclosed unit with an integrated base plate that allows easy access to composting micro-organisms while deterring rodents. It should be placed on a flat patch of soil or grass.

 The secure, twistable lid regulates the ventilation system to adjust air circulation. In cold weather, twisting the lid to the minimum locked position helps to maintain the ideal temperature inside.  The efficient airflow system helps to maintain an aerobic environment, which, together with effective layering and aerating, prevents odours.

Two secure, good-sized sliding hatches at opposite sides of the unit mean that your finished compost is easy to access but won’t leak out before you need it.

 The Johanna has been designed robust enough to withstand Swedish winters and enable year-round composting. An Insulating Jacket is available separately to maintain optimal composting temperatures.

Depending on conditions, your fresh organic compost should be ready to use after 4-6 months. 

The Johanna is fully guaranteed for five years.

Self-assembly unit. Main body comprises four circular sections marked A-D with A as the bottom section.

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Weight 10kg
Length 800mm
Width 800mm
Height 930mm
Colour Green
Material Plastic
Capacity (L) 330
Johanna Diagram Johanna Disassembled