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homesolarcone green johanna compost bin

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The Green Johanna Compost Bin

Discontinued

Solarcone Green Johanna Compost Bin

 

How it Works

specs

The Green Johanna is a unique, closed, hot composting system manufactured in Sweden.

  • patented unit provides good ventilation
  • easy to empty
  • does not allow pests to access the contents.
  • available with an insulating jacket which allows successful year-round composting.

 

 

 

 

 

 

You'll have compost quicker with the Green Johanna.

Different from the standard compost bin, the Green Johanna is designed to be rodent proof and is well insulated. This means:

  • the composting process is quicker than in a standard compost bin
  • you can put in all types of food waste - including cooked food, bones, fish and meat - which should not be added to a standard compost bin.

Use the Winter Jacket for all-year round composting.

Don't let wintertime slow down your compost process.

  • speeds up composting process in wintertime
  • use when avg. temp is below 40 degrees
  • remove when avg. temp is above 50 degrees

Compare our Composters

Solar Cone Green Johanna Compost Bin

Technical Specs

The Green Johanna is a unique, closed, hot composting system manufactured in Sweden. This patented unit provides good ventilation and is easy to empty yet does not allow pests to access the contents. The Green Johanna is available with an insulating jacket which allows successful composting throughout the year.

FAQ's

Why should you compost organic waste from the home?
A large proportion of organics collected by local authorities in the US end up being disposed of in landfill. If you compost you could be helping to reduce the amount of waste buried. Allowing it to break down in a composter is more beneficial to the environment. Landfill can produce far more greenhouse gas when breaking down organic matter than a home composter and you also end up with a usable material to put back in your garden.

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Why choose the Green Johanna?
The Green Johanna is a superior composter designed so that the contents are well ventilated, given free drainage and kept in a protected environment during the break down process. Its special conical shape helps prevent waste sticking to the inside leaving space for the air to move around. As long as you follow the simple instructions, you should find the Green Johanna easy to use.

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What is the Green Johanna made of?
It is made of a durable plastic that resists attack from the elements including extremes of temperature and is expected to last for around 10 years or more. It comes with a 5 year warranty. Although each unit is checked before shipping, please contact us if you find there is a fault or parts are missing upon delivery and we will be pleased to assist you.

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How do you start?
Since good air circulation is important to ensure efficient operation of your Green Johanna, you will need to place inside - at the bottom - branches and twigs in a layer approximately 8 inches deep. After that, add your garden and kitchen waste.

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Can I place the Green Johanna in direct sunlight?
- the contents should not be allowed to get too hot since this can kill off the beneficial microbes breaking down the contents.

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How much waste can it take?
It is designed for a household with up to five people together with the compostable waste produced from an average garden. As this this is extremely variable, if you believe you are filling it too quickly it would be recommended to have a second Green Johanna. Since a garden produces less waste in winter some of the material in summer can be kept to layer in with food waste during winter.

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What are the dimensions of the Green Johanna?
It is 36 inches across at the base, the lid is 21 inches wide and its overall height is 38 inches. It weighs 22 pounds.

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Why are there holes in the base?
This allows naturally occurring insects and worms to gain access to aid the breakdown process. It also lets excess moisture drain into the ground.

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Where should you locate a Green Johanna?
Try to have the Green Johanna as close to the kitchen as possible since you may want to put food waste in up to 4 times a week. The composter should stand on soil or grass so that the worms can get in through the holes in the base. A good place is among trees so that it can benefit from their shade. They will also offer a certain amount of protection from the cold in winter.

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Why are the contents in the composter warm during the process?
When the micro-organisms are actively breaking down waste, energy is released. How warm the compost gets depends on what you have put in, along the with levels of oxygen and moisture. The micro-organisms work best between 35 and 165 degrees and different micro-organisms work at different temperatures. The optimum working temperature in the compost bin will be around 110-150 degrees.

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Do I have to add any chemicals to get started?
No! Chemicals may upset the natural balance of the system.

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Can I put kitchen waste directly in the compost without the branches and twigs first?
No, as a good flow of air at the base is essential for efficient operation of the Green Johanna.

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Can I mix garden waste and kitchen waste?
Yes. It is recommended that you put one part garden waste and two parts kitchenwaste in to help balance the carbon and nitrogen levels which will make better compost more quickly.

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How much of my kitchen waste can I divert from the landfill?
The Green Johanna will take around 260 pounds of food waste per person per year.

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Can I still use the composter if I only have kitchen waste?
Yes, if you add layers of sawdust as the carbon content will help to balance the high nitrogen content of food waste.

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What items can I put in my composter?
From the kitchen: Fruit, vegetables, dairy products, fish, shellfish, meat, bones, coffee grounds with filter, teabags, eggshells, bread, sauce, soup, egg cartons and many others.

From the garden: Grass*, leaves**, twigs and branches. Even WEEDS can be put in the Green Johanna! And because temperatures are so high, weeds will never grow from the unit!
*Avoid large amounts of grass as this can prevent oxygen getting through and slow or stop the process entirely.
**Since oak leaves contain a high level of tannic acid, it takes a long time for them to be turned into compost. In order to speed up the process you should first put them in a sealed (vacuum if possible) plastic bag for a month or two.

NEVER deposit glass, plastic, rubber, paint, chemicals or fabrics in the Green Johanna.

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What items are rich in carbon?
Sawdust, twigs, leaves and paper.

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What items are rich in nitrogen?
Eggs, fish and meat. Newly cut grass also contains a lot of nitrogen.

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What kind of paper from the household can be thrown into the compost bin?
Unbleached crepe paper, napkins, coffee filter, torn egg cartons and daily papers (if they are lead free).

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What should I do if I put a lot of meat in the compost bin?
Put sawdust on the top and close the lid (with the ventilation open) for a few days so that flies can't get in.

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What kind of material should I spread over the kitchen waste?
Sawdust, torn egg cartons, garden waste and other carbon-rich material.

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What type of carbon-rich material should not be used in the compost?
Ashes, lime and newspapers, due to the risk of lead in the ink.

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Can I just throw everything in the compost in no special order?
No, you should put material rich in carbon and material rich in nitrogen in layers.

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Should material be broken up before being thrown into the compost?
Ideally you should break up the material into small pieces, making the micro-organisms and worms work more quickly.

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If I don't put the material in layers, what happens?
If you mainly throw material rich in nitrogen in the compost, it will get too wet and start to rot and smell. However, if you throw in too much material rich in carbon the breakdown process will go very slowly or stop.

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How thick should the layers of material be in my composter?
Not more than 2 inches.

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Does the compost smell bad?
There should be little or no smell coming from a working composter.

If you have not added enough carbon-rich material, you will get a surplus of nitrogen. This nitrogen turns into ammonia and gives off an odor. It is important that air can get in to the compost so mix the contents properly with the stirring stick (provided) and add more material rich in carbon.

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Is it important that I stir the contents?
Yes, the micro-organisms living inside the compost need oxygen to be able to work.

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How do I use the stirring stick?
The stick is made of wood with two metal wings at one end. The wings will fold when you push the stick into the material and unfold when you pull it upagain. Oxygenate the compost with the stick every time you throw something in and blend the new material with the old. Do not use the stirring stick deeper than 4-6 inches - only the top layer should be aerated.

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Can I put citrus peel in my compost?
Yes you can, but it will decompose faster if you break it up a little first and mix in with other food or compost.

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Can I put cat and dog litter in my compost?
You should avoid this, as it can be toxic. You would not wish to spread this on the garden.

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If the process has stopped. What can I do?
Empty the contents out onto the ground and add some water and mix in some carbon rich material. On the bottom of the composter place branches and twigs as before. Put the material back in the compost and start over again.

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If the contents start to rot (go anaerobic) what can I do?
Add sawdust, torn egg cartons or paper, as they will help to absorb excess moisture.

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What do I do if there are a lot of flies in my compost?
Add material rich in carbon, such as sawdust.

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What do I do if I have a lot of ants in my compost?
Ants are a sign that the compost is too dry. Add water and stir with your stirring stick.

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How long will it take before the contents are "ready"?
For the first batch approximately six months, thereafter every three to four months.

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How often should I empty my Green Johanna?
At least twice a year, spring and autumn.

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Can I use this composter during the wintertime?
Yes, with the Green Johanna you can get a winter jacket that protects against the cold and the wind - it's guaranteed to work to -13° F! It is recommended that the winter jacket be used when the temperature drops below approximately 40° F.

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How many years will the winter jacket last?
Just as many years as the Green Johanna; it is guaranteed for 5 years but the life expectancy is over 10 years.

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Can the winter jacket be damaged by rodents or birds?
It is very important that you keep the jacket clean and free of food scraps so that animals have no interest in attacking it.

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Can I leave the winter jacket on during the summer?
No, you should remove it when the temperature will no longer fall below 10 degrees Celsius. If you leave it on, the Green Johanna may overheat and stop working correctly.

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What do I do if the contents in the Green Johanna have frozen?
Pour warm water over the contents (around 95° F) together with some further kitchen or garden waste to reintroduce microbes. If you know that the compost was too wet when it froze, try it without water, using only the organic matter. An alternative method is to place a plastic drinking bottle containing boiled water into the compost. *Please take care when handling hot water.*

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