The Recycle for Cornwall campaign has been developed to raise public awareness of recycling and to provide consumers with a compelling reason to recycle.
The Green Johanna is a compromise between a compost bin and a digester.
When composting with a normal compost bin or a heap it is possible to produce a “hot” or “cold” compost environment. A “hot” environment is produced by adding a lot of materials in a short time space and also by turning or mixing the compost regularly to create a better air flow. These actions will increase the temperatures in the rotting materials causing them to break down faster and more efficiently.
For many people who may not be keen gardeners but are trying composting to reduce their waste, the idea of constantly turning the compost is too much like hard work! Often, people only add materials gradually and so therefore their compost environment is “cold”, this is not a problem and the bin or heap will produce compost but it will take longer and for this reason it is advisable to keep out materials that take longer to break down such as meat and other cooked kitchen waste.
A Green Johanna has design specifications to ensure it creates a “hot” compost environment regardless of the amount going in and the effort taken to “turn” the contents. For this reason it can deal with all the waste that a digester can handle, such as meat, fish, bones and plate scrapings; but will also produce compost as an end product so dog and cat excrement should be left out.
The Green Johanna works on the principle of good air circulation and so requires a layer of twigs placed in the base of the unit before it is used. As the aim is to produce compost the materials should be balanced between greens and browns as with a normal compost bin.
The Green Johanna is a compromise between a compost bin and a digester. 
