i checked to see what my clay was rated and it said cone 06-04 and it
also had "20-M" on it...what does that mean?
>>> CVsnare@cs.com 06/04/03 01:35PM >>>
Possibly the clay was rated 04-06 and was fired at 6? The kiln is
not ruined, but I would try to remove all the slumped pieces of pottery
could -- especially if it had glaze on it. Probably better to scoop out
pieces of the bottom firebrick, if necessary, to remove stuck shards
glaze on them, rather than leaving the glaze to reheat and continue to
through" the brick. Once you get it clean, you can always put a
shelf in the bottom and leave it there all the time (to provide a "new"
top of the damaged firebricks). Just be sure to cover the shelf with
to help with future glaze drips, etc.
at a high school in Georgia