Schedule strategy
Bubble Squeeze Explained
Listen to article
How bubble squeeze works, what it can and cannot fix, and how construction choices and schedule choices cooperate to reduce trapped air.
Read article →Free glass studio reference
Start from source references. Fire with more confidence.
Open manufacturer PDFs, video lessons, glass catalogs, community profiles, and practical tools when you need a clear reference at the bench.
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Article · Schedule strategy
Bubble Squeeze Explained
How bubble squeeze works, what it can and cannot fix, and how construction choices and schedule choices cooperate to reduce trapped air.
Featured today
Article · Advanced schedule care
Thick Glass and Re-Firing
Why thick glass heats, anneals, and re-fires differently, and how to think about mass, stress, and cumulative kiln history.
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Studio reference · Bullseye
TechNotes 5: Volume & Bubble Control
TechNotes
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Studio reference · Oceanside
Firing Thick Pieces (°F)
Thick Firing Schedules
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Video lesson · Bullseye
Considerations for Multiple Firings
In this lesson, we will cover strategies for successfully reheating pre-fired work, the cumulative effect of heatwork on glass, and how to anneal works that have been fired multiple times. We will also look at some special considerations.
01Start here
Choose the learning shelf you need now.
New to kiln schedules, comparing glass colors, or looking for practical bench skills? Start with a guided path, then open the right source reference, video, or tool.
Start here
Kiln Schedules Demystified
Learn how to read ramps, targets, holds, firing phases, and troubleshooting clues before you enter numbers into a controller.
Open path →
First firings
Fusing Basics
Get oriented around full fuse, tack fuse, contour fuse, heatwork, and how small schedule choices change the surface.
Open path →
Shape work
Slumping & Forming
Understand how glass moves into and over forms, and how firing choices affect shape, texture, and stability.
Open path →
Bench skills
Glass Cutting & Prep
Build clean studio habits around scoring, breaking, cleaning, shelf prep, and safe handling before the kiln is involved.
Open path →02Read or listen
Original MGC guides are back, image-free for now.
Open plain-language glass-studio articles, or start the audio version with the round play button below each title.
Advanced schedule care
Thick Glass and Re-Firing
Listen to article
Why thick glass heats, anneals, and re-fires differently, and how to think about mass, stress, and cumulative kiln history.
Read article →Troubleshooting
Why Kiln Schedules Go Wrong
Listen to article
A practical guide to the common failure patterns behind kiln schedule problems, from thermal shock and trapped air to excess heatwork and poor annealing.
Read article →03Today’s learning shelf
Open dependable studio references.
Find technical notes, firing schedules, safety sheets, project PDFs, and catalogs you can keep open while you cut, assemble, or plan a firing.
Bullseye · Technical Note
TechNotes 5: Volume & Bubble Control
TechNotes
Bullseye · Technical Note
Bubble Population
Product Use
Bullseye · Firing Schedule
Annealing Thick Slabs (Fahrenheit Chart)
Studio Tips
Oceanside · Firing Schedule
Firing Thick Pieces (°F)
Thick Firing Schedules
Oceanside · Firing Schedule
Re-Firing Thick Pieces (°F)
Thick Firing Schedules
Bullseye · Firing Schedule
TechNotes 7: Monitoring Kiln Temperatures for Successful Annealing
TechNotes
04Watch and learn
Watch practical glass techniques.
Find lessons on cutting, fusing, slumping, kiln work, coldworking, and studio technique from glass manufacturers and educators.
Bullseye · Video
Considerations for Multiple Firings
In this lesson, we will cover strategies for successfully reheating pre-fired work, the cumulative effect of heatwork on glass, and how to anneal works that have been fired multiple times. We will also look at some special considerations.
Delphi · Video
What is Annealing? | Delphi Live
A Delphi Glass explainer on annealing: why glass needs controlled cooling and how it supports stronger kilnformed work.
Oceanside · Video
Lesson 2: Firing Principles + Kiln Operation
Lesson 2 of this instructional course introduces tack, contour, and full fuses, breaks down the phases of a typical firing schedule, and demonstrates how to program a kiln.
05MGC family of tools
Move from learning into the MGC tool bench.
The Portal is the free learning layer. The current public tool bench includes the MGC App for studio notes and Kiln Schedule Designer for firing plans.
06What you can open
Choose the reference you need now.
Read a PDF, watch a lesson, compare glass colors, find a school or supplier, save a useful link, or open a studio tool.
Resource library
Find manufacturer PDFs, firing references, safety notes, and project guides you can keep open while you work.
119 itemsVideo lessons
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91 videosGlass catalogs
Check colors, forms, opacity, and product details before you buy glass or plan a project.
3039 items
Community atlas
Discover schools, studios, museums, manufacturers, dealers, and other glass resources near you or worth knowing about.
141 locations07Color reference
Compare catalog colors before you plan.
Browse Bullseye, Oceanside, and Wissmach glass by color, form, opacity, SKU, and photo while project color-planning tools are under review.
Bullseye samples Oceanside samples Wissmach samples
Reactive Cloud
000009-0001-F · 000009
Opalescent · Fine Frit
Reactive Cloud
000009-0002-F · 000009
Opalescent · Medium Frit
Reactive Cloud
000009-0003-F · 000009
Opalescent · Coarse Frit
Clear Rainbow Irid Frit (F2)
F2-00-F-IR
Transparent
Clear Rainbow Irid Frit (F1)
F1-00-F-IR
Transparent
Clear Metallic Irid Frit (F2)
F2-00-F-MIR
Transparent
Crystal
96-01-CF · 96-01
Transparent · Coarse
Crystal
96-01-MF · 96-01
Transparent · Medium
Crystal
96-01-FF · 96-01
Transparent · Fine