While in Holland, we had the privilege of visiting a glass blowing studio. There we learned how the glass is heated to extreme temperatures; how it is worked with to achieve the artisan's desired effect; how color is added; how different shapes are made - molding, blowing, etc.; the cooling and curing process; etc. It was a very educational and enjoyable outing!
Note: I'll be adding more photos and their explanations to this post soon, so keep an eye out for them.