PTCR measuring rings quantify both time and temperature of the glaze firing: heat work. Why do I think that’s so important to know (and to measure)? There are several reasons for this…

But let me start with what exactly PTCR measuring rings are. PTCR stands for “Process Temperature Control Rings”, so rings to get control over your firing temperature.

And what do you get out of it as a potter? I would like to explain that in this blog.