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Hi Folks, I have recently painted a simple design in Magnesium oxide over a white tin glaze which matures between 1100 and 1180 C. I read since then that Magnesium Oxide is one of the potters more toxic oxides . There is notoriously very little actual data about the safety of many glaze surfaces, but would anyone hazard an opinion as to the safety of this bowl for functional/ food use - given that the oxide is now securely bonded to a stable glaze? I would love to use/ give this bowl away, but am worried about the toxicity of the oxide which was only put on in a wash solution.
As someone who works in clay, and other forms of art and craft, such as painting, photography, creative design and so forth, I have learned to seek out mechanisms that help me keep the focus on the clay and what I am doing with it. When I'm in the studio, I don't want to drag in internal states that can just get in the way, like certain emotional infusions and negative self-talk. I ran across this article about "craft as therapy", and it's a good read. I was about ready to quit my BFA program due to internal and external hardship. Several art instructors were kind enough and astute eno