Surprised by Contaminated Clay

This weekend, I'm throwing and trimming a tall jar with a stepped lid with the initial focus being on sorting out an irritating teething issue I've been encountering... my fault, due to bad throwing. Sometimes, I've incorrectly been leaving strong throwing rings towards the bottoms of my pots, which means when I trim the vessel, a thin spot is created that ultimately buckles when fired, or it even collapse. So, in this video I'm sorting that out, whilst also covering each step along the way, from throwing the components, glazing the object, reduction firing it to cone ten, (1290ºC), and finally how I grind the lid smooth using diamond pads and carborundum paste.

I also used bronze fragments to try and create two very simple marks so that you jar and body can be aligned, but let's just say that idea went out the window...

Thanks for watching!

☕️ Mugs with Stepped Bases:    • Exploring New Ways to Craft Mug Footwells  
🐚 How to Make Wadding:    • How to Make and Use Wadding — A Useful Pot...  

📖 • ORDER MY BOOK: https://geni.us/bymyhands

🏺 • You may also be interested in my 'A Beginner's Guide' series, which you can find here:    • How to Throw a Pot — A Beginner's Guide  

Timecodes:
0:00 - Introduction
0:25 - The problem at hands...
2:10 - Throwing the body and lid of the jar
4:55 - Trimming the parts to fit
10:46 - Why I trim a concave top to my lids
16:33 - Inserting bronze into the clay
17:19 - Bisque firing the jar & waxing it
18:27 - Glazing the jar
19:52 - Cleaning up the glazes surface
21:35 - Wadding the lid
22:14 - Packing and firing my gas kiln
23:15 - Unpacking the kiln
23:46 - Removing the lid and grinding it
25:11 - The finished jar

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