With the heat of the furnace, the glass mass melts in a crucible. Once the proper consistency is achieved, the incandescent glass is collected around the top of a rod and it starts to be modelled using various iron and wood tools that prepare it for the real blow.

When the "bolus" is ready, it is inserted into a mould and it's ready to be blown. During blowing, the barrel is turned continuously to keep the glass surface perfectly smooth. Once the glass has taken shape, you can open the mold and extract the piece. The hot glass still attached to the barrel is allowed to cool very gradually to avoid tension and breakage.

Ultimately, the glass is carefully checked, and if there are no defects, it is cut and polished.