The Jam Optic jug is made using traditional glass blowing techniques. Working together as a synchronised team, glassblowers gather molten glass from the furnace on the end of a steel blow-pipe. The form is blown into an optic mould to create the texture on the outside of the jug, and then shaped to the desired size and proportion. The jug is then transferred or ‘puntied’ to another steel rod to enable the lip of the bottle to be finished. Finally, the handle of the jug is ‘pulled’ onto the form with another section of hot glass. Available in Blue and Gold.