Glass is a very versatile material, with many different ways available for creating art in glass. Art glass normally refers only to pieces made since the mid-19th century, and typically to those purely made as a sculpture or decorative art which at times served no main utilitarian function.
Art Glass made from ‘hot glass’ includes blown glass, solid sculpted glass, and cast glass.
Basically, hot glass working involves molten glass with a temperature around 2000° degrees. This hot viscous glass can be used in glass blowing, sculpting, and casting into molds.
Work such as glass sculpture, hand blown bowls, vases, goblets, and ornaments are commonly made with hot glass from a furnace.