The Joy of Metal Clay – Square Head Firing Vessel

As a relatively new alternative to the steel containers for firing base metal clay there are ceramic containers that are supposed to be resistant to heat resistance. One brand available is the Square Head Container available at Art Clay World USA. One of the advantages it that it puts the end to the black dust from the steel firing containers and is much more stable than the folded make it yourself containers made with flake free foil. I have one to test out. I loaded it with a few test pieces and proceeded with test firing. I had concerns that …