
Glassmaking Course
Master the full craft of glassmaking, from furnace operation and colour chemistry to advanced decorative techniques and professional studio practice. This course takes you from raw batch materials to finished, exhibition-ready pieces using proven, hands-on methods. Whether you want to blow vessels, cast sculptural forms, or flamework intricate beads, every essential skill is covered in one comprehensive programme.
What you will learn:
You will learn how to operate a glassblowing furnace, prepare raw batch materials, and apply colour using frit, cane, and reactive glass. The course covers core blowing and shaping techniques for producing cylinders, bowls, vases, and bottles with consistent wall thickness and proportions. You will also develop skills in flameworking with borosilicate glass, kiln fusing, slumping, and lost-wax casting. Advanced decorative methods including filigrana, incalmo, Graal, and wheel engraving are taught in dedicated chapters. By the end, you will know how to price your work, manage studio production, and present a cohesive body of work for sale or exhibition.
How you study in practice Glassmaking Course
How you practise Glassmaking Course
For businesses looking to train their team
With Dedika for businesses, the course includes exercises and examples tailored to your own business and the way your company needs.
Course content
8 Chapters • 40 LessonsDuration between 4 and 360 hours (you decide)
Chapter 1HideHide detailsSee detailsFoundations of Glass and the Studio
Foundations of Glass and the Studio
Lesson 1 • Studio Layout and Equipment Overview
Maps the functional zones of a glassmaking studio and identifies each major piece of equipment. Prepares students to navigate the workspace safely and efficiently.
Lesson 2 • Safety Protocols and Protective Gear
Defines mandatory safety practices, PPE requirements, and emergency procedures for hot glass environments. Directly enables safe participation in all subsequent hands-on work.
Lesson 3 • History and Chemistry of Glass
Covers silica-based chemistry, flux agents, and stabilisers that define glass properties. Grounds students in why glass behaves as it does during heating and cooling.
Lesson 4 • Furnace Operation and Temperature Control
Explains furnace startup, temperature monitoring, and shutdown sequences. Connects material chemistry to the working temperatures required for molten glass.
Lesson 5 • Raw Materials and Batch Preparation
Introduces batch ingredients, their sourcing, and proper handling procedures. Students gain the ability to prepare a basic glass batch before furnace loading.
Chapter 2HideHide detailsSee detailsCore Hand Tools and Basic Techniques
Core Hand Tools and Basic Techniques
Lesson 1 • Gathering and Initial Shaping
Teaches controlled gathering from the furnace and early shaping on the marver. Students develop the muscle memory needed for repeatable gather sizes.
Lesson 2 • Annealing and Stress Relief
Explains the annealing process, temperature schedules, and the consequences of thermal shock. Students correctly place finished pieces in the annealer after every session.
Lesson 3 • Blowing and Inflation Control
Introduces breath control, bubble formation, and wall-thickness management. Connects inflation technique to the structural integrity of finished pieces.
Lesson 4 • Blowpipe and Punty Fundamentals
Covers blowpipe selection, preheating, and safe handling during gathering. Establishes the grip and rotation habits critical for all subsequent forming work.
Lesson 5 • Jacks, Shears, and Forming Tools
Demonstrates the use of jacks, diamond shears, and tweezers for refining form. Students apply each tool to achieve precise necks, rims, and surface details.
Chapter 3HideHide detailsSee detailsColour Application and Glass Chemistry
Colour Application and Glass Chemistry
Lesson 1 • Colour Theory for Hot Glass
Applies colour theory principles to the unique optical properties of glass. Establishes the conceptual framework for all colour selection and layering decisions.
Lesson 2 • Reactive and Striking Colours
Covers chemically reactive glass types and the striking process for developing colour. Students learn to control atmosphere and temperature to achieve target hues.
Lesson 3 • Murrine and Millefiori Basics
Introduces the construction of simple murrine canes and their use in finished work. Connects cane-making skills to decorative surface patterning techniques.
Lesson 4 • Frit, Powder, and Cane Application
Teaches pickup techniques for frit, powder, and pulled cane on a gather. Students control coverage density and placement for predictable colour distribution.
Lesson 5 • Compatibility and Thermal Expansion
Explains coefficient of thermal expansion and its role in combining glass types. Students test compatibility and avoid stress fractures in multi-colour work.
Chapter 4HideHide detailsSee detailsForming Vessels and Functional Forms
Forming Vessels and Functional Forms
Lesson 1 • Vase and Bottle Neck Formation
Covers constriction techniques for creating necks, shoulders, and lips on vases. Connects jacking and reheating sequences to controlled neck geometry.
Lesson 2 • Quality Control and Dimensional Consistency
Establishes measurement and inspection practices for evaluating finished vessels. Students use callipers and visual checks to meet production-level standards.
Lesson 3 • Cylinder and Tumbler Construction
Guides students through building straight-walled cylinders with even wall thickness. Establishes the baseline forming discipline required for all vessel work.
Lesson 4 • Bowl and Open-Form Shaping
Teaches centrifugal opening, rim flaring, and foot formation for bowls. Students control the transition from closed to open form without losing symmetry.
Lesson 5 • Mould-Blown and Optic Mould Techniques
Introduces dip moulds and optic moulds for patterned and shaped vessels. Students use moulds to achieve repeatable forms and surface textures.
Chapter 5HideHide detailsSee detailsFlameworking and Borosilicate Techniques
Flameworking and Borosilicate Techniques
Lesson 1 • Sculptural Flamework Elements
Introduces pulling, shaping, and assembling small sculptural components at the torch. Students build compound forms by joining separately worked elements.
Lesson 2 • Bead Making on a Mandrel
Guides students through winding molten glass onto a mandrel to form beads. Connects colour application and shaping skills to small-scale flamework production.
Lesson 3 • Borosilicate Rod and Tubing Work
Teaches heating, bending, and joining borosilicate rods and tubes. Students develop control over the narrow working window of borosilicate glass.
Lesson 4 • Torch Setup and Flame Chemistry
Covers torch types, gas-oxygen ratios, and flame zone identification. Establishes safe torch operation as the prerequisite for all flamework techniques.
Lesson 5 • Flamework Safety and Ventilation
Addresses fume extraction, infrared protection, and workspace ergonomics specific to flameworking. Reinforces safety habits before students work independently at the torch.
Chapter 6HideHide detailsSee detailsKiln Casting and Fusing Techniques
Kiln Casting and Fusing Techniques
Lesson 1 • Kiln Types and Firing Schedules
Explains kiln construction, element types, and programmable controller use. Students write and execute firing schedules appropriate for fusing and casting.
Lesson 2 • Lost-Wax Casting Process
Guides students through wax model creation, investment mould making, and glass casting. Students produce a solid cast glass object with surface detail.
Lesson 3 • Cold Working Cast and Fused Pieces
Introduces grinding, sandblasting, and polishing to refine kiln-formed surfaces. Students bring cast and fused pieces to a finished, gallery-ready state.
Lesson 4 • Glass Fusing Fundamentals
Covers tack fusing, full fusing, and fire polishing at different temperature ranges. Students produce layered fused panels with controlled surface texture.
Lesson 5 • Slumping and Draping Over Moulds
Teaches gravity-driven shaping of fused glass over and into ceramic moulds. Connects fusing skills to three-dimensional functional and decorative forms.
Chapter 7HideHide detailsSee detailsAdvanced Decorative Techniques
Advanced Decorative Techniques
Lesson 1 • Incalmo and Joined Sections
Covers the incalmo technique for joining two separately blown sections mid-form. Students align colour zones and weld sections without visible seams.
Lesson 2 • Surface Etching and Sandblasting Design
Covers resist application, stencil cutting, and multi-stage sandblasting for layered designs. Students produce a carved panel with depth and tonal variation.
Lesson 3 • Filigrana Cane Construction
Teaches the preparation of latticino and reticello canes for filigrana work. Students pull consistent canes and arrange them for pickup onto a gather.
Lesson 4 • Overlay and Graal Technique
Introduces cased overlay construction and the Graal process of cold-working then re-blowing. Students produce a Graal vessel with an etched interior design.
Lesson 5 • Wheel Engraving and Cold Carving
Teaches copper wheel engraving and diamond-point carving on annealed glass surfaces. Students execute intaglio designs with controlled depth and line quality.
Chapter 8HideHide detailsSee detailsStudio Practice and Professional Production
Studio Practice and Professional Production
Lesson 1 • Finishing, Signing, and Packaging
Covers cold finishing, artist signatures, and protective packaging for transport. Students prepare finished pieces to professional presentation standards.
Lesson 2 • Pricing, Costing, and Market Positioning
Introduces cost-of-goods calculation, labour costing, and retail pricing strategies. Students price their body of work using a consistent, defensible methodology.
Lesson 3 • Production Workflow and Time Management
Establishes batch production sequences, furnace scheduling, and kiln loading strategies. Students optimise studio time to maximise output without sacrificing quality.
Lesson 4 • Designing a Cohesive Body of Work
Guides students through concept development, material selection, and series planning. Connects artistic intent to technical execution across multiple related pieces.
Lesson 5 • Portfolio Development and Exhibition
Guides professional photography, artist statements, and exhibition submission processes. Students assemble a complete portfolio representing their technical range.
Your valid completion certificate
This course is for you:
Absolute beginners: eager to enter glassmaking with a thorough, structured foundation.
Ceramic or metalwork artists: ready to expand their craft into a new hot medium.
Career changers: seeking a skilled trade with genuine artistic and commercial potential.
Hobbyist crafters: wanting to move beyond casual making into serious studio practice.
Art school graduates: looking to add glassmaking to a broader studio skill set.
Aspiring glass teachers: building the technical depth needed to instruct others confidently.
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