Registration will be opening again in Fall 2020. Get on the waitlist!



Mastering Glaze Consistency

Master the art and science of consistent glaze results in this comprehensive online program. 

Become confident in your ability to control your glaze application, troubleshoot glaze issues and repeat your best glaze results, firing after firing, without having to sacrifice your body of work to the “kiln gods”.

Mastering Glaze Consistency will walk you through every step of the making, glazing and firing process with easy to understand explanations for how each step is affecting your end results.

By the end of this course, you’ll have:

  • A complete picture of the 7 main factors that are affecting your glaze results
  • A thorough understanding of how different glaze materials and water affect glaze application, and how to control them
  • A repeatable, step-by-step testing and tuning system that you can use with each of your glazes to make sure they turn out the way you intend them to
  • An increased vocabulary of ceramic jargon that will help you understand what the heck the experts are talking about in glaze books and online
  • The confidence to make intentional glazing decisions instead of just going for it, crossing your fingers and hoping for the best.
  • Specific strategies for troubleshooting some of the most common glaze issues and reasons for kiln opening disappointment

If you’re a potter, ceramic artist, teacher or studio technician who wants more control over the glazing process and confidence in your ability to consistently repeat your most amazing results, then you probably already know that you need to learn a bit of science and the technical side of ceramics if you want to take your glazing skills to the next level.

Registration will be opening again in Fall 2020. Get on the waitlist!


Undesired glaze results are commonly caused by an issue with glaze application thickness

The #1 way to control glaze application thickness is by monitoring and controlling the glaze’s water content.

Water is THE most overlooked glaze ingredient.

When glaze mixing, most people are very careful about measuring out the powdered glaze materials so precisely, and then they dump a bunch of water in until it “seems” the right thickness.

This is the part where all control over glaze results goes out the window.

If you’re not paying attention to how much water you’re putting in your glazes, then you can expect to have varied results.

Here’s an example of one glaze with increasing water content

Inconsistent water content


Inconsistent glaze application thickness


Inconsistent glaze results

But the good news is, it’s easy to take control over your glaze’s water content.

You can measure how much water there is in any glaze. Even if your glaze has been around forever and there’s no way to possibly know how much water has been added, you can find out exactly how much water is in that glaze.

The process is called measuring specific gravity and it’s the first step to mastering glaze consistency.

Once you start taking control of the water content of your glazes, not only are you going to see a noticeable improvement in the consistency of your glaze results, but you’ll start to see how many of your past glaze issues were a result of inconsistent water content.

You’ll start to connect the dots and say “I can’t believe I wasn’t paying attention to the water in my glazes before.”

Now, you might be wondering, “Is that all I have to do? Will measuring the water in my glazes solve all my glaze problems? Can it be that simple?”

If you’ve been working in ceramics for long enough, you probably know the answer to this.

Measuring specific gravity of a glaze using a graduated cylinder and a scale

Glazes are more complicated than that

Adjusting the water is just the first step. You also need to consider how the viscosity of the glaze is affecting application.

The viscosity of a glaze is the physical thickness in the bucket. Viscosity can be adjusted in several ways. Adding water will thin a glaze down, but adding water isn’t always the best option.

It’s important to understand how not enough or too much water could have a negative impact on your glaze results and why.

Different glazes are going to behave differently, depending what they’re made of. Each glaze is unique and is going to have its own ideal conditions that depend on a number of factors.


Here are some of the factors that we need to consider:

  1. What’s your application method?
  2. Do you think the glaze looks better when thin or thick?
  3. Will the glaze be layered?
  4. What’s the glaze made of?
  5. Do the glaze materials absorb water?
  6. Do the glaze materials dissolve in water
  7. How much is too much water for this glaze?
  8. Does the glaze dry too fast or too slowly?
  9. Is your glaze completely homogenized?
  10. Does the glaze run when thick?
  11. Does the glaze shrink when it dries?
  12. Does the glaze crawl?
  13. How is the glaze’s viscosity affecting your application?
  14. Does the glaze need to be flocculated or deflocculated?
  15. How porous is your bisque?

These are just some of the factors that contribute to the end result.

If you’re reading this list and thinking, “I’ve only ever considered #1 before,” don’t worry! You’re not alone.

Most people just try to get their glaze to the right visible thickness for their application method and don’t give much thought to the rest until they’re trying to solve a problem.

This is what many of us are taught and then teach others.

But the truth is, all of these other factors are playing a role in your glaze results, whether you’re paying attention to them or not.

There’s a scientific explanation for all of it and there’s a simple step-by-step system you can follow to make sure you’re not leaving anything out.

Once you understand the science behind glaze application, your glaze results will start to make a whole lot more sense. You’ll be able to make better glazing decisions, troubleshoot issues and advance your creative skills with more controlled glaze application.

You’ll finally have the confidence to glaze that stock-piled bisqueware without the fear of ruining your pots by glazing them.

Does that sound exciting to you? Is it time to finally roll up your sleeves and master the art of glaze consistency?

If you’re tired of piecing together bits and pieces of information that you’ve gathered off the internet and you’re ready for someone to lead you through all the important details of consistent glazing, then I invite you to join me in my newly updated online course:

Mastering Glaze Consistency

An in-depth program that will give you a foundation of technical, scientific knowledge plus a complete, step-by-step testing system that you can use to fine tune and master each of your individual glazes.

I’ve taken everything I’ve learned through my years as a ceramics studio technician, courses I’ve taken, research I’ve done and thousands of glaze tests and put it all into an online program that walks you through all the WHATs, WHYs and HOW-TOs of consistent glaze application and results.

This program is an extension of my original online program “Specific Gravity and Flocculation”. In the year since I first created this program, I’ve continued my research and experiments on these topics and I’ve learned more of the nuances that affect glaze results.

I’ve expanded the course to include absolutely every detail I know that affects glaze results and I’ve added step-by-step experiments and tests that I’ve been using in order to understand glazes on a deeper level.


Mastering Glaze Consistency is the only program of its kind that:

  • Gives you a full picture of all the factors that are affecting your glaze results, including using witness cones, bisque temperature, test tiles, application method, water, viscosity and flocculation
  • Teaches you the science of glazes BEFORE they enter the kiln, without assuming you have any prior technical knowledge
  • Breaks down the technical aspects of glaze application into very easy to understand explanations, complete with pictures of my own glaze results and video walkthroughs of the processes
  • Gives you all the steps that you need to implement what you’ve learned with easy to follow, step-by-step glaze maintenance and testing systems that you can use to fine tune and master each of your existing glazes


I hope you’ll join me this fall and finally take your glazing game to the next level!

Registration will be opening again in Fall 2020. Get on the waitlist!


Pin It on Pinterest

Share This