Bread-Bakers v109.n025.7

Stephen,

While looking to see if firebrick was food safe, I came across this 
site about using fire brick in a ceramic cooker.  I imagine you could 
do the same with unglazed quarry tiles.  I still don't know for sure 
if the quarry tiles or fire brick are food safe.

http://www.nakedwhiz.com/firebricks.htm

Dave