The Waterford Crystal workshop in Waterford, Ireland, hasn't changed much over the years.
The mold department has both wooden molds made of beech and pear woods—designed for items where only a few would be produced, such as golf trophies—along with cast iron molds that could be used for years to produce more popular lines. The crystal glass in made from special ingredients, including silica sand mined in Belgium. This sand melts at extremely high temperatures, making the crystal strong and transparent.
The molten crystal is blown, Waterford said, because it needs a hollow in the crystal in which to hold water, wine or ice. It said blowing the shape through the use of a pipe is still found to give the best results.