Check out other shorts for more tests to run. A simple test to begin learning about how safe and durable your new glaze recipe really is. Many more pottery videos on my channel.
These are four problems I often see my pottery students struggle with when learning to pull cylinders on the wheel. I hope these tips help you diagnose what's going wrong, and gives you an idea of how to fix it. If you would like to see a longer, more in-depth video, let me know in the comments.