respirator for safety
Sue wearing respirator

Dust is the stealth intruder of pottery land

Making pottery is a very complex and rewarding craft, especially when you make your own clay and glazes.  Potters take naturally occurring materials and heat them in a kiln to transform them into glass.  How cool is that?

Most of our glaze materials come to us in their very basic, unprocessed form.  They are dug out of the ground, impurities may or may not be removed, they are ground into a fine powder, bagged and shipped to our suppliers.

Working with these minerals in their raw state poses some health risks.  While most of our materials generally don’t pose an immediate danger such as being explosive or highly corrosive, they can introduce serious long term health problems that can easily be avoided with the proper personal protection.


If you’ve never worked with raw glaze materials before and wonder where to begin, this starter kit shopping list will get you on the right track.


Personal Protective Equipment (PPE)

  1. Respirator- protect your lungs. Be sure to wear a NIOSH approved, fit tested respirator with P100 particulate filters when working with dry materials.  Without a respirator, tiny air borne dust particles can enter the lungs and cause irreversible damage over time.  You might not be able to see them but they can be deadly.


  1. Gloves- protect your hands and arms from coming into contact with raw materials. While some materials are harmless, some can irritate the skin and others contain toxic minerals that can be absorbed into the skin.  Don’t risk invisibly poisoning yourself.


  1. Safety glasses- protect your eyes. You never know when glaze might splash into your face.  Your vision is too important of an asset to risk.  Plus, safety glasses make you look fabulously industrial, especially with that snazzy respirator on.


  1. Apron- protect your clothes. There’s no sense protecting all of your body parts in the glaze lab, only to walk out, take all of your PPE off and your clothes are still covered in dust to breathe in and share with your friends.


  1. Tie your hair back- protect your head. I don’t know about you but my hair is super long and the thought of it getting wrapped around my drill mixer crosses my mind every time I use it.  If you have long enough hair to tie back, tie it back.  If I’m having an exceptionally long glaze mixing session, I will even tie a bandana on my head so that the dust can stay in the glaze lab and not on my head.


  1. Wipe your feet- protect your surroundings. It is good practice to wipe the soles of your shoes after a messy round of mixing so you don’t track dust and raw materials around your studio where they could later be hazardous to yourself and others.  An old, damp towel works well to wipe your feet on.  Rinse towel at the end of the day and hang to dry.

Don’t skimp on safety

While the risks of working with raw materials may not seem immediate enough or hazardous enough to use all of these safety practices at all times, you have to remember that the damage is being done beyond your level of awareness.  You may not feel a physical reaction, but reactions are taking place in the body and the effects can cause a serious impact on your health and your life.

I want you to live a long and happy life in your pottery studio. If you love working with raw materials and mixing your own clay and glazes like I do, make sure you are protecting yourself so you can continue to do what you love forever.


Do you have anything to add?  Let me know how you practice safety in your glaze lab in the comments below.

Join my free community

If you love learning about and discussing glazes, I'd like to invite you to my free social learning Facebook group called Understanding Glazes with Sue. The group is full of videos and discussions about firing, mixing glazes and fixing various glaze issues. Please join!

5 Ways You Can Make Your Glazes More Amazing (using glaze chemistry)

If you’ve ever wished your glaze could be just a little more…

  • cost effective
  • green/red/blue/purple
  • compatible with your other glazes
  • matte/glossy
  • stable/fluid

… then you don’t want to miss this free class!

Date: Sep 21, 2023

Time: 10:00am Pacific / 1:00pm Eastern / 6:00pm UK time.

A replay will be available to watch for a limited time if you can't make it live.

The Art of Glaze Chemistry

Learn how glazes are formulated by using the UMF (unity molecular formula) and glaze calculation software to:

  • create different glaze surfaces like matte, satin or glossy
  • get glazes to melt at different temperatures or ensure your glaze is being fired to the right temp
  • create durable, functional glazes
  • fine tune the colours of your glazes
  • fix crazing and other thermal expansion issues

This is a deep dive into all the chemistry that's happening inside the kiln.

Registration open Sep 21-29, 2023.

Learn to Mix Glazes from Scratch

If you’ve never mixed a glaze from scratch before and want to learn, I teach an online workshop called Glaze Mixing Essentials where I show you all the steps to mix a glaze and then test a base glaze with multiple colourants. Click the link for all the details.

September sale: Save $30 if you register by Sep 30, 2023.

Free Glaze Class – Sep 21

Sept Sale: save $30

Glaze Materials Workshop

Inconsistent Glaze Results? Download this free guide

Free Download – 99 Glazes

Download my Understanding Cone 6 NCECA presentation

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