Glass-blowing, which most likely originated in Syria between the first century BC and the first century AD, is a glass manufacturing technique that revolutionized glass production times by significantly speeding them up. This may be defined as the “classic” technique for creation of hollow objects.
Glass can be mouth-blown or mould-blown. In the first instance the master, aided by his assistants, shapes the object by blowing through a long hollow metal tube, the so-called “blow-pipe”.
The glass is picked up from the center of the oven, blown and shaped by use of a “borsella”, a pair of flexible tongs that can accomplish different tasks depending on their shape. Indeed, the borsella can be used to pinch the object, narrow it, remove imperfections, open it up or give it a precise shape.
During this work, the pipe is countinuously spun to avoid warping the glass, as it is still soft at this stage and can be warped by gravity.