Registration will be opening again in 2021. Get on the waitlist!



Mastering Glaze Consistency

Master the art and science of consistent glaze results in this comprehensive online program. Mastering Glaze Consistency is 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.

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 is a 4-week program that 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

What my students are saying…

“Since taking your glaze consistency class in the spring, I have slowly been improving my glazing skills. I just had the best kiln unloading of my life! The main fixes were from witness cones on all the shelves (top and bottom was under firing) and using an electric mixer. I was using a toilet bowl brush and I don’t think it was doing the job. I would never have guessed I was under mixing. Or that my kiln was so uneven. Seems obvious now.

Also, I have an engineering and physics degree, and your explanations of the chemistry and physics of ceramics were the best I’ve ever heard. Everything finally clicked in place.”

Lindsey Olsen

Pitbull Pottery


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.

It’s time for some direction

You’ve read books, done countless Google searches and watched dozens of YouTube videos and you KNOW that there’s more to mastering the glazing process than counting the number of seconds you hold your piece in the glaze for.

You also likely know that it’s important to pay attention to the amount of water you’re adding to your glazes. You’ve probably heard the term “specific gravity” before and you may have even started measuring the specific gravity of your own glazes because you KNOW that it’s one of the keys to consistent results.

Maybe you’ve even dabbled with flocculants and deflocculants too. You’re testing all the techniques and suggestions that you’ve heard about because you’re serious about finally taking control of this glazing business.

You’ve spent so much time piecing together all the information you’ve found that you’d think you’d have it all figured out by now.

But you always seem to learn some new, significant tip or detail that you had no idea about before and then you have to figure out where that detail fits within all the information you already have.

It’s ok, because you’re up for it. You’re invested in the process. You didn’t hop on the potter’s wheel and throw amazing pots right away. You put a lot of time into learning the making process. You failed a lot but you kept trying.

You’re ready and excited to put your time into mastering the glazing process but you want to make sure you’re focusing on the right things.

Even though you focus on glazing consistently, your results are anything but consistent

Does this story sound familiar to you?

You’ve spent days, weeks, even months throwing, building, sculpting a kiln load of pots and then you get to the part where it’s time to glaze all of these creations.

You pick up a mug, hold it in your hand, turn it around and imagine what it will look like when it comes out of the glaze firing.

You start planning something like:

“I’ll use Glaze X on the inside. I’ll pour the glaze in and quickly pour it back out again.
Then on the outside, I’ll create contrast with Glaze Y on the top that will run into Glaze Z at the bottom. Glaze Y is a little runny but Glaze Z is super stable. I’ll do quick dips of each, with an inch of overlap because that’s what I did last time and the combination looked spectacular.
Then I’ll add a splash of Glaze X on the handle to tie the outside in with the inside. I’ll do all 12 mugs the same.”

The mugs look perfect in your mind. Just what you envisioned before you ever started making them. You’re feeling very inspired and excited about your craft and the work you’ve been creating. Your making skills have improved so much over the last few months.

You can’t WAIT for this kiln opening.

This story can continue in a variety of ways…

Scenario #1:

Your mugs come out of the kiln looking exactly as you expected. The liner glaze is perfectly even and smooth. And look at those vibrant colours where the glazes overlap on the outside. So much depth, even better than last time!

No kiln shelves to scrape, no head scratching results, no re-fires. You snap a couple photos, upload them into your online shop and happily start making more pots.

Scenario #2:

Your mugs come out of the kiln safely, no drips, but why are the glazes so dull? Last time you used this glaze combo, the results were vibrant and colourful. This time, it looks muddy and lifeless. All 12 mugs are the same.

What happened? Why do they look so terrible?

Your friends tell you how nice they are but you’re disappointed. You had a vision and this definitely isn’t it.

Do you re-glaze them and re-fire? Is that even going to help?

Do you sell them even though you’re not very proud of them? Will you learn to like them one day or would you be embarrassed to have your name attached to them for eternity?

Do you take a hammer to them and start over?

You spend some time contemplating what to do about them, meanwhile your spark and creative energy has faded. You know you need to try again but it takes a while to get your groove back.

Scenario #3:

You open the kiln and “NOOOOOO…” your glazes have run all over the place.

How did this happen? These are supposed to be stable glazes. They worked great a couple months ago and you didn’t change anything. Same buckets of glaze, same glazing technique.

You spend a day grinding kiln shelves and grinding mug bottoms, trying to salvage the few mugs with the least damage. Most of them get the hammer.

You spend another day on the internet, posting photos and questions in various ceramic forums, trying to figure out what happened. You get advice from 60 different people with 60 different things you may have done wrong, but no real clarity about what to do differently next time.

You feel defeated but decide to start again and make more pots. You finally get your groove back by making some really cool pots but you’re so afraid of glazing them that you keep putting it off.

You stockpile your bisque until you have no space left and are forced to do some glazing.

With fingers crossed, you carefully glaze again and hope for the best.

Scenario #4:

You open the kiln and at first glance, your mugs look a-MAZ-ing!! Exactly as you hoped they would look. You do a little happy dance and excitedly start unloading the kiln.

Suddenly, your heart sinks as you notice that the glaze has crawled on the inside of most of your mugs. It’s not extreme, but there are small bare patches where the glaze has peeled away, exposing the clay body underneath.

The outsides are perfect, better than you could have imagined! Long, colourful drips that stop just before touching the kiln shelf. You couldn’t have planned it better if you tried.

But the insides are cringe-worthy. You put them out of sight as you unload the rest of the kiln. Then you reluctantly check back on the mugs. Maybe they’re not that bad… Maybe you over-reacted… 

Nope. There’s no denying that they’re flawed beyond your acceptable standard of work. You decide to touch up the bare spots with glaze and re-fire the mugs with your fingers crossed. After all, what have you got to lose except time and kiln space?

When they come out of the second glaze firing, a few of them are fixed and perfect. A few of them have new bare patches on the insides. These ones get the hammer.

A few of them look great on the insides but the outside glazes have now run onto the kiln shelves. Those lovely, fluid, outside glazes just couldn’t handle any more heat.

You spend some time grinding your kiln shelves and grinding the bottoms of the mugs that ran. You realize that you’ve spent more time trying to fix these 12 failed mugs than it would have taken to make 12 new ones. You promise yourself that next time, they’re all getting the hammer and you’re moving on.

What’s your glaze story?

Of the 4 scenarios described above, which is closest to the experience you’ve been having with your glazes?

Scenario #1 is what we all strive for. It’s what we deserve eventually, right? If we keep trying and take lots of notes, surely one day, we’ll be good at this.

But how frustrating is it when you pay such close attention to your process and try so hard to repeat what you did last time, only to get completely different results? It’s enough to pull your hair out.

Scenarios #2, #3 & #4 are so common and the cause of these results is quite simple.

Registration will be opening again in 2021. Get on the waitlist!



What my students are saying…

“I was getting some bad kiln results and couldn’t figure out what to do about it.  I had already purchased some flocculant and deflocculant, but I didn’t know how to use them. Since I don’t have any glaze community nearby I was stuck.  YouTube videos helped, but were incomplete.  I didn’t just want an instruction for what to do – I wanted to know why I was doing it.

This course more than met my expectations.  As someone with 25+ years of university teaching I was delightfully surprised with your organization and delivery of the course material.  I liked the previews of the lessons and the ability to print out the transcripts so I could listen instead of scrambling to write everything down.  I will confess I had never measured specific gravity before, so my glaze mixing was really just guess-work.  I’m so much more confident now.”

Dr. Mary Wise TerBeck


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

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.

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?

Registration will be opening again in 2021. Get on the waitlist!



What my students are saying…

“I have a blue commercial glaze with which I have problems getting consistent results. So the course description was exactly matching with what I was looking for. Throughout the course I realized that I have more glazing issues that I can try to solve now 🙂

The course really met my expectations! It was very well structured, provided good and clear explanations, showed enough examples, etc.”

Danielle Cools


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!

If you’re ready to take control of your glaze results without sacrificing your body of work to the kiln gods, here’s how you can get there:

Course Breakdown

The course is broken up into MODULES and each module contains several short, easy to digest VIDEO LESSONS.

Most of the lessons are under 20 mins and some are even under 10 mins with about an hour worth of lessons in each module (give or take).

Module 1 is a preparation module and then the rest of the course is broken into two Phases: The Learning Phase and the Implementation Phase.

Modules 2-4 are the Learning Phase where you’ll learn all the WHATs and WHYs of achieving consistent glaze results. This is where you build your foundation of knowledge.

Modules 5-7 are the Implementation Phase where you’re going to learn HOW to implement your new knowledge through a series of step-by-step tests and experiments to help you fine-tune your glazes and get them working the way you want them to.

Module 1: Setting Yourself Up for Success

The first module will help you get prepared to take this course. You’ll get a detailed description and checklist of all the tools and supplies you’ll need to implement what you learn in the program.


  • Start a glaze journal to keep track of your glazing process and connect your process with your results coming out of the kiln.
  • Learn all the useful details you can pay attention to while glazing and firing
  • Make test tiles and test pots that will give you the most relevant information about your glazes so you don’t have to sacrifice your body of work for the sake of learning.
  • Gather the supplies you’ll need for measuring specific gravity, flocculating and deflocculating your glazes.

Module 2: Why Are Glazes So Inconsistent?

In this module we’ll go over all the reasons why glaze results are so inconsistent.

Learn the 7 factors that affect glaze results and how to control them – including temperature, cooling cycle, glaze application thickness, bisque porosity, mixing, application method, specific gravity and viscosity.


  • Learn about the importance of using Witness Cones for understanding your glaze results.
  • Understand the difference between “heat work” and “temperature”
  • Understand how the temperature you bisque fire to is affecting your glaze application.
  • Learn why insufficient mixing can lead to disappointing glaze results
  • Learn ways to improve the consistency of your glaze application whether you’re dipping, brushing or spraying your glazes.

Module 3: Water Content and Specific Gravity

How does the amount of water in your glaze affect your application and results? How do you know how much water to add to your glazes? 

This is where we discuss the concept of specific gravity, why it’s important, how it’s measured and how it’s going to help you control and improve your glaze results.


  • Learn how to calculate the amount of water in any glaze, regardless of batch size or whether you mixed it yourself.
  • Understand why using a hydrometer is NOT a good way to measure specific gravity and what to do instead.

Module 4: Viscosity and Flocculation

In this module, you’ll learn why water isn’t the only way to change the thickness of a glaze and how the materials our glazes are made of affect glaze application and fired results.

Understand when to use flocculation and deflocculation to adjust your glaze viscosity, instead of only adjusting the water content.


  • Learn about the role of clay particles in a glaze recipe and how they play an important part in glaze viscosity.
  • Finally understand the concepts of “flocculation” and “deflocculation”, the difference between them, how they affect a glaze on a particle level, and when you should use them to improve your glaze application.
  • By the end of this module, your technical ceramics vocabulary will have expanded a great deal. Celebrate by using the word “flocculate” at the dinner table!
  • This is also the end of the Learning Phase and you’re now ready to move into the Implementation Phase.

Module 5: Measuring and Adjusting Specific Gravity

Now that you’ve learned all the reasons for measuring specific gravity, let’s go over the steps! We’ll start by going over all the times and situations when I recommend taking a specific gravity reading of your glazes.

You’ll analyze your glazes as they are now and as you’ve been using them. Then you’ll get into adjusting the specific gravity to see how changes in water content affect your fired results.


  • Dig out your test tiles and put all your new technical knowledge to practice with some glaze testing.
  • Learn my simple, 2-Step Glaze Tuning System that you can use as a guide for all future glaze adjustments
  • Learn how to use specific gravity to make sure your glaze results are always consistent and how to adjust specific gravity to suit different glaze application needs.
  • I’ll share the trends I’ve seen with specific gravity values for different types of glazes, like matte glazes and clear glazes.
  • View my own specific gravity tests with full explanations of my results.

Module 6: Assessing and Adjusting Viscosity

How do you know when your glaze needs to be flocculated or deflocculated? In this module, you’ll learn a couple of methods for assessing the viscosity of your glaze in order to decide if it needs adjusting. 


  • Understand when a glaze needs a water adjustment vs a flocculation adjustment
  • I’ll share my experiences with different flocculants and deflocculants and explain why I choose the ones I recommend.
  • Learn what happens when you add too much flocculant or deflocculant
  • Perform my Multi-Viscosity Experiment by testing each of your glazes to find the sweet spot for where they work the best for you.
  • View my own Multi-Viscosity Experiments with full explanations of the results.

Module 7: Improving Your Glaze Results

Now that you’ve learned all the steps for adjusting your glazes and you’ve done some testing of your own, let’s talk about all the ways you can improve our glaze results by implementing what you’ve learned in this course to solve common glaze issues and inconsistencies.


  • Gain a full understanding of how to use this course to improve your glaze results and solve common problems that you’re having now or may encounter down the road.
  • Learn how to deal with unexpected running, cloudy clear glazes, very thin wares, titanium glazes, cracking/crawling glazes, glaze drying issues and hard-panning.
  • Celebrate all you’ve learned by glazing some pots and sharing how your results have improved with others.

What my students are saying…

“I signed up to understand how to make glaze and get consistent results.

I understand so much more about what the ingredients are, how to fix our guild’s problematic glazes, how to figure out how much water to add to the recipe and get consistent results.”

Michelle Fortin


Bonus: Flocculation/Deflocculation Research Videos

While I was doing research to create this course, I did a lot of testing to really understand how flocculation/deflocculation works. I tested different flocculants and deflocculants with four different types of glaze composition and I video taped the testing process.

I tested going back and forth between flocculating and deflocculating. I tried over-flocculating and over-deflocculating. I tried to ruin glazes and then tried to fix them. I pushed the glazes, flocculants and deflocculants to their limits for the purpose of understanding what can go wrong.

As an added bonus to the regular program, I’m including these research videos for you to watch. These videos are for the ultra-curious. They informed my teaching for this course. You can complete the program without watching the research videos but they’re helpful to solidify the knowledge, or refer back to when troubleshooting.

Worksheets, Action Plans, Slides and Transcripts

In addition to recorded videos, many of the lessons include downloadable pdf checklists, assignments and further reading.

At the end of each lesson there’s a list of action steps to take. Some will be quick and easy, others will be more involved. I highly recommend you do all of them.

The assignments, tests and experiments are there to help you fully integrate what you’ve learned and see the full potential of your glazes. What makes them succeed? What makes them fail?

You can find a checklist of all the action steps for each module in a downloadable Action Plan. The Action Plan will be attached to the first lesson of each module.

Each lesson also comes with a downloadable pdf of my PowerPoint slide presentation and a written transcript. This is to help those who may be hearing impaired or for whom English isn’t their first language.

(The main content of the course was scripted in advance and has been included in transcriptions. There may be some “off-the-cuff” video clips that aren’t transcribed.)

Module Release Schedule

This course has 7 Modules, each Module containing several Lessons.

Module 1 is available right away when you register.

The course officially “starts” on Nov 2 with the release of Module 2.

Modules are released on Mondays and Thursdays. There’s a week break after Modules 5 and 6 to give you time to do some glaze testing.

Once the final Module is released, you have lifetime access to all of the Modules. Forever! So you can go at your own speed any time after that.

(I still recommend taking it easy and doing the assignments but it’ll be completely up to you at that point.)


Mastering Glaze Consistency

Two program options

I know that as potters, ceramic artists, studio technicians and teachers, we all have different levels of previous experience and different ways that we prefer to learn new things.

Whether you learn best on your own or in a group setting, I have a program tailored for you. You can choose between the Guided Group Program or the Independent Study Program.

Both programs offer lifetime access to the Mastering Glaze Consistency online course.

Guided Group Program

The Guided Group program is for anyone who wants the full, interactive course experience where you can go through the course alongside fellow students, ask questions, communicate within the group, talk about your results and have guidance as you work through the program on the “Guided Track”.

The Guided Track happens each time I welcome a new group of students into the course where everyone’s working through the program together.

Guided Group Bonus – Communities

The Guided Group program includes two Community options. Being part of a community while you work through a course is one of the best ways to learn.

Since there are so many variables in ceramics, hearing the questions and experiences that others are having will give you insights that you wouldn’t get otherwise. Someone may ask a question that you hadn’t even thought of but it helps you work through a problem you’re having.

Private Facebook Group:

You’ll be invited to a private Facebook Group for Guided Group students only where you can ask questions 24/7 and share your homework assignments and glaze results.

You’ll have lifetime access to the Facebook group.

Course Community:

If you’re not on Facebook, there’s a Course Community feature that you can access from your course dashboard where you can post questions and glaze results, just like in a Facebook Group.

You’ll have access to this Course Community until the end of the Guided Track. Then it will be archived.

Guided Group Bonus – Glaze Chat Q&A Sessions

The Guided Group program also includes four online weekly Glaze Chat Q&A Session.

These Glaze Chats will be held on the Zoom video conferencing app on Fridays where we can get together face to face and you can ask all your questions and share your test results with me and the group.

Questions can be submitted in advance so even if you can’t make it live, your questions will be answered. The Glaze Chats will be recorded and uploaded to the course so everyone in the Guided Group will be able to watch the Q&A sessions. 

You’ll also have access to all the past Glaze Chats from the previous Guided Tracks.

I promise to answer all course questions and will schedule extra Glaze Chats if necessary to answer all questions.

Another benefit to joining the Guided Group Program is that you’ll be invited to join the Guided Track each time I welcome a new group of students and you can participate in future class Glaze Chats as well.

So even if you’re not able to complete the program right away, there will be more opportunities to have your questions answered down the road. Plus, the private Facebook group is always there for you to ask question, even in between guided tracks.

Here’s the Glaze Chat schedule, but remember that you can pre-submit questions if you can’t make it live.


Guided Group Bonus – Mastering Glaze Vocabulary – Word Hunt

Build your ceramics vocabulary and win a prize!

I’ve included a special fun bonus challenge for my Guided Group students.

Here’s how it works:

You’ll receive a list of 24 technical ceramic words/phrases that are mentioned in this course.

If you can correctly identify a Module/Lesson of the course where each of the 24 words can be found, you’ll win a coupon for 50% off any of my future online programs or workshops.

Future courses/workshops will include topics like how to mix glazes from scratch, glaze chemistry, glaze formulation and understanding the Unity Molecular Formula (UMF), using the Stull chart etc.

(50% off coupon must be redeemed within 2 years)

Independent Study Program

The name says it all. The Independent Study Program is completely independent, DIY, on your own.

There’s no discussion, no community, no glaze chats, no opportunity to ask questions… independent.

If you’re already feeling pretty solid on your experience with glazes, you don’t anticipate needing to ask questions, and you’d rather just take the course on your own, this could be a good option for you.

The Independent Study program still follows the Module release schedule listed above and I still hope you do the course assignments, but you won’t be reporting back to me. The assignments are there for you to solidify your learning and understanding of the course.

If, while you’re completing the course independently, you decide you’d like more support, you can upgrade to the Guided Group program at any time by paying the difference between the two programs at the time of upgrading. Contact me for a link to upgrade. Once you’re in the Guided Group program, you’re in it forever.


What my students are saying…

“I’ve always felt like glazing was my least favorite part of making pottery.  I just wanted to get through it ASAP and results were always a surprise. I got tired of spending time making something only to feel overwhelmed by all the stuff I couldn’t understand or control during the glazing process.

By taking this course, so many of my glazing issues have been addressed. I am looking forward to troubleshooting any problems that come up.”

Rebecca Gillmore


“I needed to learn why some things glaze well and some things don’t. Why some batches of glaze turn out terrible versus turning out amazing.

This course gave me the insight as to what likely was occurring with our guild glazes.  It changed my relationship in the sense that I now have information to figure out why something happened, how to address, and how to improve.”

Sara Munroe

Additional Details

Payment Plan

Payment plan must be paid by Credit Card. PayPal is only available for Full Payment options.

If you choose the payment plan, the first payment will come out right away and you’re agreeing to make 2 more monthly payments that will automatically be withdrawn from your credit card. Default on monthly payment will result in loss of access to course and Facebook group.

Access to Course Content

By registering today, you’ll have instant access to Module 1 – Setting Yourself Up for Success. The course officially starts on Monday, Apr 27 with the release of Module 2 – Why are Glazes So Inconsistent? Then a new module will be released every 3 days, according to the Module Release Schedule provided above.


The Glaze Knowledge Guarantee (refund policy)

Mastering Glaze Consistency is the only online ceramics course of its kind. It’s a thorough, yet easy to understand program for serious potters, ceramic artists, studio technicians and teachers who are ready to learn all the reasons why glazing is the most frustrating part of the ceramics process. 

It’ll guide you from the making to the bisque firing to the glazing, to the glaze firing processes, giving you insight into how each step contributes to your final results. With this knowledge and a step-by-step testing system, you’ll develop control and the confidence to get your chosen glazes working the way you want them to.

You’ll have a chance to go through the entire “Learning Phase” of the course before you decide whether this course is the missing piece in your glazing education.

By the end of Module 4, you will have learned in great detail, the 7 factors that affect glaze results and how to control them.

If this in-depth understanding of the technical aspects of glaze application doesn’t give you several light bulb moments where the glazing process and results start to finally make sense, and you don’t wish to continue and learn all the implementation steps, you’re welcome to:

  1. Send me an email
  2. Explain how the course didn’t meet your expectations
  3. I’ll refund your investment

Refund requests must be received by Wed, Nov 11, 2020 at 4pm PST. This is just before Module 5 will be released. Once Module 5 is released, no refunds may be requested. Allow 14 days for refund to be processed. Access to the course will be revoked as soon as refund is initiated.


As I receive questions about the course, I’ll update this section with the answers.

Commercial brushing glazes

This course is designed for anyone who controls the water content of their glazes. This includes glazes made from scratch, dry commercial powdered glazes and commercial dipping glazes. I don’t personally have experience with commercial brushing glazes so I don’t know how the techniques in this course would affect them.

If you ONLY use small jars of commercial BRUSHING glazes and you don’t ever intend on using any of the other kinds of glazes, this course may not be as relevant to you. There are some sections that will still be helpful, like learning all the factors that are affecting your results but the specific gravity and flocculation sections weren’t designed with commercial brushing glazes in mind. Use caution if you decide to take the course. Always test on a small amount of glaze before adjusting larger quantities.

Do I need a hydrometer to take this class?

No. I’ll be teaching you why NOT to use a hydrometer to measure specific gravity and why to weigh your glazes instead. Please DON’T buy a hydrometer to take this class.

Does this course focus on a certain temperature? Cone 6? Cone 10?

No, this course isn’t temperature specific. It focuses on helping you achieve consistent glaze application for consistent results at any temperature.

What if I can't access my studio right now?

Even though the course includes assignments to do in your studio, there is also a lot that you can learn just by watching all the course videos.

If you don’t have access to your studio right now but are itching to make progress in your ceramics journey, you can sign up and do the course now, and then when you get back into your studio you can go back and do all the assignments. You have lifetime access to the course so whenever you’re ready to get back into the studio, the course will be there for review.


All questions about the course can be sent through my website contact form. I’d love to hear from you!

Your Instructor – Sue McLeod

I’ve been a studio potter since 2010 and ceramics studio technician at a community studio since 2015.

After exploring ceramics through a mainly artistic lens for a few years, I gradually got sucked into the technical side.

Learning about the materials we use, how they work together and the chemical reactions that happen in the kiln has been the most inspiring part of my artistic journey.

As I learn and understand more and have those lightbulb moments where something finally makes sense, I can’t help but want to share with my community.

It wasn’t so long ago when nothing made sense to me and I remember how frustrated I was when things didn’t turn out as I hoped.

Having knowledge of the chemistry of clay and glazes gives me the freedom to be more creative. It allows me to turn my inspirations into physical creations and you can too!

I believe that all ceramic artists can benefit from exploring the chemistry of their clay and glazes, even at a very basic level. If you’re looking for someone to take complex subjects and explain them in a way that’s easy to understand, even for the most right-brained creatives, you’ve come to the right place!

Thanks for joining me on the ceramics journey.

Registration will be opening again in 2021. Get on the waitlist!



What my students are saying…

“I wanted to learn more about controlling glaze thickness, dealing with settling (hard panning) in buckets and generally understand more about keeping my glazes in good shape.

Taking this course made me want to keep better track of things, and know that I can control glazes instead of just putting up with whatever happened.  It improved my relationship with glazes a lot!”

Ann Peters



All questions about the course can be sent through my website contact form. I’d love to hear from you!

Mix Your Own Glazes from Scratch - Online workshop Apr 24

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