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Sustainable Cycling of Food Waste
Bokashi fermenting perhaps more accurately described as acidic anaerobic fermentation
is a simple and effective method of rapidly metabolizing organic waste. This can be done
at almost any scale and results in virtually all of the nutrients including carbon going
back to soil within a matter of days. No heat, gases or methane are produced in this
process which takes place within sealed fermenters.
Bokashicycle and New Earth Farm (Hillsboro, OR) have established an efficient cycling
of waste moving from the restaurants back to the farm in the form of food scraps that are
fermented and put back to soil to support subsequent produce used in the restaurant by
chefs who prepare meals for their customers.
Food waste material is collected and inoculated with bokashi culture mix. It is then
shredded and placed in 55 gallon fermenters to ferment 7 - 10 days. The fermented
product is then allowed to drain and subsequently spread on the farm land to be tilled.
Fermented food waste tilled in the soil is virtually indistinguishable from other soils
within 7 - 10 days after tilling except for the fact it is enriched.
After 14 days in the soil crops are planted again in the enriched soil completing the full
cycle ---[farm produce to consumer]---[waste back to farm]---[new produce back to
consumer].
This cycle is far less costly than traditional composting and is 10 times faster than
composting. The process does not generate heat or gases. Methane producing microbes
do not tolerate the conditions of acidic anaerobic fermenting. Greenhouse gases are
eliminated in the process in stark contrast to composting operations. Water , a precious
resource is conserved and never added to support the processing of waste. Traditional
composting consumes water.
In summary, Bokashi fermenting on a commercial scale is far less costly than composting
and it is more efficient. Foul odors are virtually eliminated. And the process results in soil
enriched in nutrients and microbes.
End of Farm Videos