The combination of a Green Johanna with an Insulating Jacket helps to achieve year-round hot composting temperatures of around 30 – 60 + degrees Celsius and to maintain the composting process in cold weather.
The jacket helps you to control the compost temperature. As well as using it to raise temperatures, you can remove it to cool the bin down, for example if the compost temperature exceeds 70 degrees C, as this will be too hot for the composting microbes to survive and the process will stall.
The Green Johanna
Recommended as a Best Buy in Gardeners’ World magazine and in Which? magazine, 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.
The Johanna is an enclosed container with a perforated integrated base plate that allows access to worms and micro-organisms while deterring rodents. Made in the UK from 100% recycled plastic, it has a five-year guarantee and expected lifespan of 10 years or more.
- Secure twistable lid helps to regulate ventilation.
- Patented airflow system.
- Two secure sliding hatches mean finished compost is easy to access but won’t leak out before you need it.
- One Johanna is designed to cope with the average food waste of a household of five and compostable waste from an average garden.
- Aerating stick also supplied. Made from 100% recycled plastic (may differ from images on the website and elsewhere).
- Self-assembly (the base plate and four modular sections screw together).
- Modular sections mean that it’s possible to remove more compost by unscrewing sections if you wish. Also, if one section becomes damaged that section can simply be replaced.
The Insulating Jacket
The jacket comprises three circular sections and a lid piece, all made from foamed polyethylene.
The jacket fits snugly so there is no space for cold air to circulate. The sections overlap each other slightly so that the ventilation holes at the top and bottom of the composter remain uncovered.
For more information please download our Green Johanna composting handbook.
Made in the UK |
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Weight | 9.5kg |
Length | 820mm |
Width | 820mm |
Height | 940mm |
Colour | Green |
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Material | Plastic |
Capacity (L) | 330 |