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YouTube

Testing Black Stoneware Clay: From Throwing to Firing Disaster

Florian Gadsby via YouTube

Overview

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Follow along with this 41-minute pottery tutorial as a ceramicist tests a new black stoneware clay body (PF 680) with unexpected results. Witness the complete process of creating tea caddies and jars - from blending clay and throwing on the wheel to trimming, bisque firing, waxing, glazing, and reduction firing to 1290ºC (cone ten). Learn specific techniques including spiral wedging, lifting pots off the wheel, and creating wadding for kiln firing. The demonstration ultimately ends in disaster, providing valuable lessons about clay behavior and firing challenges. Perfect for intermediate potters interested in stoneware experimentation and troubleshooting common pottery problems.

Syllabus

0:00 - Introduction & the clay I'll be using
1:41 - Blending the two stoneware clays
4:27 - Throwing the tea caddies/store jars
11:49 - How I invert the callipers and throwing the lids
15:14 - Trimming the pots
22:28 - The trimmed jars
23:23 - Packing the electric kiln for a biscuit firing to 1000ºC
24:26 - Waxing the jars
26:07 - Glazing the jars
28:50 - Cleaning up the glazed surface
31:56 - Positioning the waddings on the underside of the lids
33:10 - Loading my Rohde KG-340 gas kiln
34:00 - Reduction firing to cone ten, 1290ºC
35:50 - Unpacking the kiln and the results...

Taught by

Florian Gadsby

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