[Terrapreta] Let's talk retort materials for a little bit

[David Yarrow]

clay?  abundant, cheap, natural, widely available, almost free, low tech, easy to dispose of.

of course, a basic question:
are you making charcoal just to make charcoal?
or are you trying to generate biofuel?
or are you just trying to co-generate space heating?

different designs for different applications.

for a green & peaceful planet,
David Yarrow
44 Gilligan Rd, E Greenbush, NY 12061
www.championtrees.org
www.OnondagaLakePeaceFestival.org
www.farmandfood.org
www.SeaAgri.com
  ----- Original Message ----- 
  From: Greg and April 
  To: Terra Preta 
  Sent: Wednesday, May 14, 2008 3:18 PM
  Subject: [Terrapreta] Let's talk retort materials for a little bit


  What kind of materials make a good retort?

  Titanium?
  Carbon Steel?
  Stainless Steel?

  What?

  Greg H.



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