— — This is an outdated page, click here for the updated page — —
The making of the pot - and its materials
The pot, or the ladle, or the crucible, actually stands inside the furnace and in which the glass melt is contained. The pot is subject to the harshest conditions, not only by high temperature, but molten glass is very corrosive.The pot walls are 5-10 cm thick and by the end of the working day it is time to charge the pot with new material. So the wall is about 1100 degrees and then you suddenly fill the pot with cold pellets. Compare to bringing a 300 degree ceramic bowl straight from the oven and filling it with cold water from the tap. The glass pot is exposed to this treatment daily.