By adding special glass from double helix glassworks and setting the flame to the correct mixture of propane and oxygen, it is possible to create stunning metallic effects and beautiful lusters. And by using a lot of transparent glass, you can create some stunning depth in your bead. Once the bead is finished, it is placed in a bowl of granulate with the mandrel and all. There it can cool gently to room temperature. Temperature control is very important because glass expands as it gets hot. Cooling it unevenly will create stresses in the bead which, due to the brittle nature of glass, will result in fractures. Once the glass bead is cooled, it is removed from the mandrel, leaving a hole behind for the thread.
Perhaps you would like to try yourself? We do, every now and then, have people over for a workshop. At the end of the 4 hour lesson, you will walk out the door with a bracelet with your own beads on it! Contact me for more information.