Hollow Boro Fundamentals - Six Week Course
April 6 - May 11, 2026
Thursdays, 5:00pm - 9:00pm
Level: Intermediate
Instructor: Hannah Mhairi 

Fee: $925 + gst

In this intermediate course, students will learn the foundational techniques for constructing hollow forms from borosilicate glass tubing. Students will practice pulling points, connecting hollow handles, and opening holes in three different ways: puffing, snapping, and pulling a membrane. Students will also learn foundational colour techniques such as coil pots and blowouts, building the skills needed to control volume, shape, and wall thickness.

The goal of this class is for each student to be able to begin making hollow vessels and exploring hollow techniques. Throughout the course, we will focus primarily on clear glass with some colour accents while building an understanding of heat control, airflow, tools, terminology, and essential glass safety.

*Students should have at least 60 hours on the torch (instruction and practice time) and have a good foundational understanding of how to flamework solid borosilicate glass. Students should know how to punty, how to keep glass on centre, and how borosilicate glass behaves as a material. Not sure if you are ready for this class? Email us at info@terminalcityglass.com! 

Age 16+

About the Instructor

Hannah Mhairi was born and raised in the lower mainland of British Columbia. She discovered borosilicate glass in 2021 and quickly became an active member of Terminal City Glass Co-op, dedicating most of her free time to learning the art. Hannah has used social media, particularly instagram, to connect with other glass artists from all around the world, and to create an online portfolio. She has spent the last 2 and a half years living and travelling in various places across North America, UK, and Europe in the pursuit of glass knowledge and experiences. She recently returned to Vancouver after spending 5 months working at the renowned Corning Museum of Glass. Hannah has shown work at PoMoArts in Port Moody, and Sans Labels in Los Angeles.