Romancing the StudioNovember 10, 2011Annealer and Casting LadlesBy Minna Koistinen The round casting ladles are used to pour molten glass into molds which can be made out of sand, metal, graphite or plaster to name a few. Next Pipes and Pontils Related Posts Furnace with molten glass inside at 2025°F (blowing temperature) November 9, 2011 A Puffer November 11, 2011 Glory Hole and Yoke November 11, 2011 Close up of the Glory Hole November 10, 2011