Today, glass blown bongs are a multi-million dollar industry, and vary from local specialists to mammoth industrial facilities, yet they are regardless all made by hand. With twofold bubblers, diffusers, ice chambers and spill-proof twists, glass is more astounding than before. Past the easy to use innovation, the specialty itself has advanced with detailed pieces that are so lovely (and costly) you practically would prefer not to smoke out of them.
Glassblowing entails three furnaces. The primary, which contains a pot of liquid glass, is alluded to as the furnace. The second is referred as the glory hole and is utilized to reheat pieces in the middle of the work. The last furnace is known as the annealer or lehr and is utilized to cool gradually the glass, which can go for a couple of hours to few days, contingent upon the size of the pieces. The tip of the blowpipe is initially preheated; then plunged in the molten glass in the heater.
This keeps the glass from shattering or breaking because of a thermal stretch. Before, the entire three furnaces were contained in one structure, with an arrangement of dynamically cooler chambers for each of the three purposes. Numerous glassblowing studios in South America and Mexico still utilize this technique. The main tools applied by glassblowers are the blow tube (blowpipe), punty rod, marver, bench, paddles, jacks, tweezers, and paper in addition to different shears.