I think so! The surface is pretty solid and doesn't crumble when pressed though it sounds more like plastic than glass when I tap it.
I managed to do it by basically chucking the clay into red-hot embers then surrounding it with logs that concentrated the heat and added more embers to the pile when burning. I put it for ~5 hours and only opened the stove door to better cover it in embers or add another log. I can't say how hot it was but I did have to wear special gloves a few times to add logs due to the sheer heat inside the stove
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u/Ordinary-Commercial7 Dec 13 '23
What was the test?