16/01/2026
Day 2: measuring clay shrinkage!
Once you know the shrinkage of your clay, you can plan your project better! The template generator in my bio can give you the exact dimensions for your pot if you know the shrinkage and your target :)
I’m the video, I make a slab of clay and then cut it into a small tile. To be more precise, I then use a calliper to press a mark of 100 mm in the tile. After the clay dries, I measure it again. Now I know that this air dry clay from shrinks by 5% from the bag to bone dry!
You need to be careful though. If you take that clay and add a lot of water to it while throwing on the wheel, you do need to measure that again. From wheel to bone dry, there is a lot more water to go and then a lot more to shrink. And if you fire it (yes, this clay can be fired), you of course need to account for that too. Just fire your tile, in this case, and measure it again :)