The furnace
1,150 degrees, all day.
The furnace never really goes out. A gas-fired crucible holds 90 kilos of clear glass at 1,150°C, and the glory hole beside it keeps each piece workable between heats. By nine, when we open the doors, it has been roaring for three hours.
90 kg of molten glass
The gather
Honey on a stick.
A steel blowpipe goes in cold and comes out wearing a glowing gather, turned slowly so gravity cannot drag it off. Too fast and it flies, too slow and it sags. Turn, always turn.
Rolled at about 60 turns a minute
The breath
One lungful at a time.
A small puff makes the first bubble. We roll it on the bench, let it cool a touch and blow again. Each breath is shorter than you expect, and the wall gets thinner every time.
Four breaths for a vase
Shaping
Jacks, paper and patience.
Steel jacks pinch the neck, wet paper cups the bulb, and gravity does the rest when the pipe is swung. The glass is workable for seconds at a time, so we keep going back to the glory hole.
Reheated six or seven times
Annealing
Hot to cold, very slowly.
Cool glass too fast and it cracks in the night. Every piece goes into the annealer at 520°C and comes down over eighteen hours, until the stress has gone and the colour has settled. Then it is yours.
Out at 9 a.m. the next day