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.
1 Generally, start the reduction cycle when the witness cone before your target cone begins to tip. 2  For example, with a cone pack with cones four, five, and six (the target cone being cone five), you will want to start reduction when cone 4 starts to tip. 3  You want to build up some pressure in the kiln.