[permaculture] Biogas/Jean Pain - shaved, not chipped

John Schinnerer eco_living at yahoo.com
Tue Mar 5 17:17:19 EST 2002


An important item on Jean Pain's work - from Peter Bane's article in PC
Activist and another source that I can't recall at the moment - Pain's
research showed that the woody material worked much better when
*shaved* (e.g. shredded lengthwise, more or less) rather than chipped
(cut crosswise).  I read that all of the so-called "chipper/shredders"
commonly sold in the USA are really just "chippers" - hammer mills of
one sort or another - and that none of them actually shave (shred
lengthwise) the material in the way that Pain found most effective.  So
trying his methods with a (mere ;-) chipper might not produce all that
great of results.

John Schinnerer, MA
- Eco-Living -
Cultural & Ecological Designing
Food - Shelter - Community
john at eco-living.net

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