September 26th, 2011 WorkshopNovember 17, 2011Waiting for glass to cool down before cracking off and annealingBy Minna Koistinen Previous Student heating glass in the glory hole Next Playing with Fire participant heats up glass Related Posts Working the hot glass November 17, 2011 Minna Koistinen with a gather of glass November 17, 2011 Trailing glass onto a graphite slab November 17, 2011 Playing with Fire participant heats up glass November 17, 2011