Glassblowing is a magnificant craft. There is a lot of talent, patience and good training needed. “Earth” becomes by fire glass and the breath and hands of the glass blowers result in a unique product. Blowing of glass has existed since the beginning of our era, when people succeeded to melt sand, lime and soda into a liquid mass and blow glass. The craft of glassblowing has undergone few changes ever since.
This is how our glass is produced in Eastern European factories:
With a steel pipe, one gets molten glass from a furnace. In case of colored glass, a finely ground glass powder is fused on the ball and caught between two layers of clear glass. The object is blown in a wooden mold. This gives the object its shape on the lower half. The wooden mold burns out each time a little, resulting in unique vases with their own character. Then a steel rod (pontil) is glued with a small piece of hot glass to the bottom. The glassblower breaks the object from the blowpipe. The object is taken over by the pontil. On the place where glass was on the pipe, there is a hole. By heating the object in an oven at temperatures of approximately 1,200 degrees, the material is softened. The master blower gives the vase the desired shape. When the model is finished, it goes into the annealing furnace. The glass is slowly cooled and this process releases the pressure from the material. The bonding surface of the pontil is neatly cut. Small deviations and bubbles are not errors, but are part of the unique process of glass blowing.