The Furnace The furnace is where the glass is melted and kept molten. Glass is a mixture of silica (sand) and chemicals which are put into the furnace and melted down. The furnace is kept at approximately 2100 F and is never shut off.
The furnace is where the glass is melted and kept molten. Glass is a mixture of silica (sand) and chemicals which are put into the furnace and melted down. The furnace is kept at approximately 2100 F and is never shut off.
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