Bokashi Composting

Fermenting organic matter to improve the humus and organic matter of the soil.

Developed by Agro-Vital Netherlands


What Is Bokashi?


Bokashi is the Japanese word for "well fermented organic matter"In contrast to traditional composting, there is virtually no emission of CO2 and almost all of the energy is retained. Bokashi compost provides optimal nutrition for the soil and its microbiota. All fresh organic matter is suitable and can be used in the Bokashi compost method. Examples include grass, leaves, crop cuttings, sub standard potatoes, farm yard manure and slurry. 




Maximum Efficiency


When organic matter is fermented, almost all the carbon is retained and found in the end product.

This is clearly shown in the table of research figures. Bokashi is there the ideal way to raise the level of organic matter in your soil. Moreover, there is more energy (MJ) in the material to stimulate the life in the soil, the improving soil fertility.

Click to enlarge
Click to enlarge

Conventional compost heaps release CO2 into the atmosphere
Conventional compost heaps release CO2 into the atmosphere

Carbon Footprint


In contrast to traditional composting there is virtually no loss of carbon in the form of CO2.


This makes Bokashi compost the most environmentally friendly method to recycle green waste effectively, increasing sustainability to the farm and workplace






Ingredients Added to Make Bokashi

The fermentation is kick started by the microbes in Actiferm. Actiferm is a liquid mixture of beneficial micro-organisms including lactic acid bacteria, fungi, yeasts, phototrophic bacteria and actinomycetes. These promote the conversion of biomass. Moreover, Actiferm enhances the natural balance and biodiversity.



Ostrea is crushed sea shell grit. This is a soil conditioner which prevents pH swings and provides a slow release calcium carbonate with a pH of 6. This is vital for the microbes in Actiferm to survive, multiply and work effectively.



Edasil is a special formulation of clay minerals. The clay minerals in Edasil bind minerals and other important nutrients which become available during the fermentation process.






These products are supplied by our sister company, EM Agriton Ltd who are an Authorised Distributer of EM Effective Micro-organisms.








Practical Bokashi Rules

  • 25% minimum dry matter and a maximum of 50% dry matter. The bacteria in Actiferm cannot establish themselves if the organic material is too dry or woody.
  • Aim for a C/N ratio of 20:1. This is best achieved using a combination of green wastes.
  • Fermentation is an anaerobic process which is why the Bokashi heap is sealed just like a silage clamp.





Farmers - Equine - Horticulture - Municiple


Slurry and straw are an ideal base for making Bokashi. This can be as separate materials or as farm yard manure, so long as the farm yard manure is fresh and has not started rotting. Waste or substandard crops such as potatoes can also be added to the heap.


Horse manure is ideal for making Bokashi compost as long as it has not started rotting and is fresh.


Landscaping, pruning, leaf and household green waste can be converted by fermentation into a high nutritional value compost without the emission of carbon dioxide like conventional council composting site giving a much better carbon footprint. The reduced loss of organic material means an increased saleable commodity.