coffee parchmet
David Ehrlich (Wed, 26 Nov 2008 11:56:27 PST)

Laura & Dave ask whether coffee chaff could replace coir.  As a person who roasts his coffee every morining, I am quite familiar with chaff, although I don't use it.  Unlike coir, it gets very wet, very easily, and it has very little substance, so I don't think it will loosen your mix at all: more likely, just the opposite.  About its value otherwise, I know very little.

David Ehrlich