Hand Blown Glassware
- Date: 2007-05-31 - Word Count: 280
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Most household glassware is made from a silica-based material. Basically, it is made from sand or quartz, large natural crystals of quartz are the purest form of Silicon Dioxide and is used for high quality specialty glasses. Glassblowing is the process of forming glass into useful shapes while the glass is in a molten, semi liquid state.
The most used method, starts with the raw ingredients of sand, limestone, soda ash, potash and other compounds heated to over 2000 degrees Fahrenheit, this forms a crucible of molten glass. The molten glass rests to allow the bubbles to rise from the mass. To work with the glass it needs to be re-heated to between 1500 and 2000 degrees Fahrenheit.. A long blowpipe is first pre heated and than dipped into the molten glass in the furnace. It is removed in a globular form and is rolled to form the exterior shape, sometimes the mass is put into a mold on the end of the blowpipe. Periodically the glass needs to be reheated for pliability. Using the blow pipe and other tools the glassblower forms the basic shape desired. The final furnace is called an "annealed" and is used to slowly cool the glass to prevent cracking.
From the 14th Century to present day many new techniques have expanded the glass making process and along with creative artistic input many useful and beautiful pieces have been and continue to be made. Venetian and Okinawa glass is particularly fine due to the local availability of almost pure silica and quartz pebbles. In 1962 the "Studio Glass" movement became a worldwide art form thus leading to the accessibility of fine hand blown glassware for our tables.
The most used method, starts with the raw ingredients of sand, limestone, soda ash, potash and other compounds heated to over 2000 degrees Fahrenheit, this forms a crucible of molten glass. The molten glass rests to allow the bubbles to rise from the mass. To work with the glass it needs to be re-heated to between 1500 and 2000 degrees Fahrenheit.. A long blowpipe is first pre heated and than dipped into the molten glass in the furnace. It is removed in a globular form and is rolled to form the exterior shape, sometimes the mass is put into a mold on the end of the blowpipe. Periodically the glass needs to be reheated for pliability. Using the blow pipe and other tools the glassblower forms the basic shape desired. The final furnace is called an "annealed" and is used to slowly cool the glass to prevent cracking.
From the 14th Century to present day many new techniques have expanded the glass making process and along with creative artistic input many useful and beautiful pieces have been and continue to be made. Venetian and Okinawa glass is particularly fine due to the local availability of almost pure silica and quartz pebbles. In 1962 the "Studio Glass" movement became a worldwide art form thus leading to the accessibility of fine hand blown glassware for our tables.
Related Tags: glassware, studio glass, glassblowing
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