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.
Over time, a glaze will develop subtle surface cracks, which adds to the natural patina of a handmade tile and we call this crazing or crackle. Crazing is something that happens naturally over time. We're big fans of this effect, so we sped up the process by offering a number of glazes that crackle, or craze during kiln firing.