Advanced Glass Blowing allows the creation of wine glasses and distilation coils. It involves working a glass pipe in a Glazier's Lab. You can move the pipe in and out of the furnace, rotate it, and blow into it. The points in the middle of the furnace heat up, while the rest cool down. The hot sections gradually droop due to gravity, so you have to keep rotating it. When you blow into the pipe it causes the radius of the hot sections to increase.