[alt-photo] coffee and cyanotype

[Christina Anderson]

Interesting post from 2004:


From: RHobbs3 at aol.com 
Date: 09/09/04-06:34:42 PM Z
Message-id: <e5.a9def0.2e7250a2 at aol.com> 
I have used old cold coffee for my first wash. Coffee has an amazing 
collection of acids, which change depending on the darkness of the roast. If I cover 
the print with coffee and let it sit for a minute or five then proceed with 
the wash, my final blue shifts toward gray or black. I suspect the tannic acid 
in the java is what does this. 
For some reason, I get less staining of the paper base this way than I do if 
I make the print first and tone in coffee later. 

Rob Hobbs 
Christina Z. Anderson
christinaZanderson.com