[Stoves] Crispin´s kiln. (was Re: Traditonal Charcola Making Process / retort

[Jeff Davis]

Crispin wrote,
> If the outer surface is sealed by heating, it is nearly impossible to get
> the charcoal out after that.

So it could be possible to have a porous substrate (clay) with a smooth
outside surface.

Not that that would be adding any value.


Jeff



-- 
Jeff Davis

Some where 20 miles south of Lake Erie, USA