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Digitalfire Insight

A downloadable program for Windows, Mac, Linux for doing classic ceramic glaze chemistry. It has been used around the world since the early 1980s.


A desktop application for Windows, Linux, Macintosh that you download and install. Insight is a classic glaze chemistry calculator.

-It interactively converts recipes to formulas and back. The main Insight window shows side-by-side recipes and their formulas, you can make chemistry changes to one while comparing it with the other.
-Insight is also a library and a teacher
-It puts at your fingertips a huge amount of information to help you learn the principles of glaze chemistry and it teaches you how to adjust, fix and formulate glazes.
-It is a database
-You can store all your recipes, picture, material information where you can easily find it.
It is a problem solver
-Using our videos, instructional and reference materials and our personal help you can solve problems like crazing, leaching, crawling, pinholing, blistering, etc.

Related Information

The New 2020 Digitalfire Reference Library is Here

The Digitalfire Reference Library on desktop and smartphone

It has morphed into a webapp, reflexive and menu-driven (based on Twitter Bootstrap). It now employs permanent URLs. And pages have logical, and hierarchical URLs (e.g. digitalfire.com/oxide/cao, digitalfire.com/material/feldspar). It correctly forwards 5000+ old URLs. Terms from the glossary automatically hotlink throughout (as do code-numbers for recipes, tests and firing schedules). The search field in the menu bar is area-specific (or all-area at digitalfire.com/home). Still no ads and no tracking. The UI displays from server #1, it calls the database API on #2, the email system on #3, media from #4 and insight-live.com from server #5! So it is super fast, flexible and expandable. There are new areas (e.g. projects, pictures, typecodes). Media displays better. Every page still has a contact form, so you can ask any question anywhere. What till you see what's coming!

Here is what digitalfire.com looked like in 1997!

We already had a large library of educational material (the predecessor of the Digitalfire Reference Library). The Foresight product was the fore-runner to insight-live.com today. And it was free like today. And we were warning people about the importance of safe glazes and understanding the "why" questions about the ceramic process.

Another reason that Insight-live.com exists

First, I need to record this as a recipe in my account at insight-live.com so it can be printed at any total, documented with pictures of it on different clays, firing schedules and how they affect it, general notes. And be accessible from anywhere with any device. Then I need to start working on improving it. With all that feldspar it is sure to craze, I need to reduce it and substitute the some of K2O it contributes for MgO (from talc). With all that clay (29 total) it is sure to crack while drying, I need to split it into part calcined kaolin and part kaolin (the ball clay is not needed). And those raw colorants: Better to use a black stain. At a minimum it is better to use cobalt oxide than carbonate. The burnt umber could likely be increased to eliminate the need for both the manganese and iron (since it supplies both and has zero LOI).

Digitalfire Logo

The main recipe window in Digitalfire Insight software

Insight installs on your Linux, Windows or Mac computer. It provides a very interactive way to comparing two recipes and their calculated formulas or analyses. As you make changes in the recipe you can see how it impacts the recipes. It is ideal for demonstrating concepts like unity, analysis, formula, mole%, LOI, formula-to-batch conversion.

Desktop INSIGHT showing formula and analysis side-by-side

Desktop Insight was the first to enable users to compare two recipes and their formulas side-by-side and interactively update when recipe changes were made. It also enabled users to show formulas and analyses side-by-side.

Digitalfire Insight materials dialog window

Desktop Insight remembers materials (in its database) as formulas and their formula weights. From this it can calculate the LOI. Materials can have alternate names so they are more likely to be found in calculating recipes. This dialog provides tools for adding, editing, deleting, importing and exporting materials.

Digitalfire Insight 4.1 running on DOS cerca 1983

This was on the IBM-PC, it was introduced in 1982. Until then Insight was running on Tandy Model 1 and 3 computers. The program was shipped on floppy disks. I was lightning fast, recalculating the chemistry as fast as you could push the calculate key. It could handle as many recipes as you had disk space for and knew about 100 materials and their chemistry. However only one recipe could be displayed at a time. Many of our customers stuck with the old DOS version of Insight well into the 2000s, even though the Windows version had long been available.

The Digitalfire glaze calculation worksheet for Excel

From the 1980s to 2000s we made this spreadsheet available. It stored materials and did the calculations in the same way that Insight did. We used it to verify that calculations were being done correctly and many customers downloaded it to learn more about the theory.

Digitalfire Insight running on a Macintosh middle 90s

The Macintosh version used the same file formats as the Windows version right from the start. Macintosh customers however, were more likely to think that the program should think for them and more likely not to know which way to put the floppy disk in!

Digitalfire Insight 5.1 running on Windows 95

It is not really that dissimilar to Insight as it is today. It packed alot of power but people of the time were not inclined to believe that it was possible to do the chemistry that easily, or even that the chemistry was worthwhile learning.

Digitalfire Insight 5.0 running on Windows 95

This was the Insight jump from the old DOS version to a modern graphical user interface. Although Insight was available in Window 3.1, Windows 95 was the first version that was good enough that people left DOS behind.

Digitalfire Insight logo


Media Desktop Insight 1A - Compare Theoretical and Real-World Feldspars
Media Desktop Insight 1B - Turn a Feldspar Into a Glaze
Media Desktop Insight - Difficult Formula to Batch Calcuations
Media How I Fixed a Settling Glaze Slurry Using Desktop Insight
Media How to Add Materials to the Desktop Insight MDT
Media Desktop Insight MDT: Adding a Material
Media Desktop Insight: Maintain an MDT as a CSV File in Excel
Media Subsitute Gerstley Borate in Floating Blue Using Desktop Insight
Media Digitalfire Desktop INSIGHT Overview Part 2
Media Digitalfire Desktop INSIGHT Overview Part 1
Media Substituting Nepheline Syenite for Soda Feldspar
Media Convert a Cone 10 Glaze to Cone 6 Using Desktop Insight
Media Desktop Insight 1C - Substitute Wollastonite for Whiting in Glazes
Media Desktop Insight 5A - Glaze Formula to Batch Calculations
Media Desktop Insight 2 - Creating a Matte Glaze
Media Desktop Insight 3 - Dealing With Crazing
Media Desktop Insight 4 - Add a Native Material to MDT, Build a Glaze
Glossary Tony Hansen
Tony Hansen is the author of Digitalfire Insight, Digitalfire Reference Library and Insight-Live.com, he is a long-time potter, ceramic lab-technician and body and glaze developer.
Glossary MDT
An acronym for Materials Definition Table. The XML materials database of Digitalfire Insight glaze chemistry software.
Glossary Digitalfire Foresight
Database software for DOS made by Digitalfire from 1988 until 2005 and was used to by ceramic technicians to catalog recipes, materials, test results and pictures.
Glossary Insight-Live
A database website where potters and ceramic technician account holders enter their recipes, materials, pictures, test procedures, firing schedules, etc.
URLs www.digitalfire.com
Digitalfire website
URLs https://digitalfire.com/insight
INSIGHT Glaze Chemstry Software

By Tony Hansen

Copyright 2008, 2015, 2017 https://digitalfire.com, All Rights Reserved