This is the 3rd tutorial video in a series of glass blowing basics and glass studio processes.
In this short tutorial video, Bernard Katz covers what the main components are that make up a basic simple glass formula.
Bernard fills the furnace with the ‘batch’ along with some recycled glass. He throws in about 50 pounds or so every 1-2 hours until the furnace is full. Filling the furnace is a process called ‘charging’. Melting a full tank of glass takes about a day with the furnace at a high temperature of around 2400 degrees.
Resources and more information used in this video about
glass formulas can be found at :