September 26th, 2011 WorkshopNovember 17, 2011Minna Koistinen demonstrates the colour gathering processBy Minna Koistinen Previous Minna Koistinen shaping and blowing molten glass Next Shaping and blowing glass simultaneously Related Posts Cutting a jack line into hot glass November 17, 2011 Glass paperweights and ornaments workshop November 17, 2011 Minna Koistinen guides student with shaping a hot glass paperweight November 17, 2011 Trailing glass onto a graphite slab November 17, 2011