Esther Earl. (Redirected from Esther Day) Esther Grace Earl (August 3, 1994 â August 25, 2010) was an American author, internet vlogger, online personality and a Nerdfighter, as well as an activist in the Harry Potter Alliance.
To begin controlled cooling, allow the kiln to cool as fast as it can for the first 300Â° so the controlled portion of the firing is taking place about 300Â° lower than the cut-off temperature.
Shut off the kiln when the glass has bent to the degree that you want. As a starting point, you could fire a bottle to cone 016. Cooling usually must be slow from 1100 degrees F. to 700 degrees F, which is the annealing range. The smaller the project, the faster the glass can cool through that temperature range.