Executive Summary A digital kiln controller is useful, but it is not the final authority on what happened inside your kiln. Witness cones are. A witness cone is a small pyrometric cone placed inside the kiln beside your ware. It bends in response to heatwork—the combined effect of temperature and time—not simply a temperature reading. […]
Tag Archives: pottery kiln firing
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A good kiln firing schedule is not simply a matter of entering a final temperature into your kiln controller and pressing Start. The firing rate, temperature range, hold time, moisture removal, clay body, glaze, load, and kiln itself all affect the result. That is why two firings that reach the same final temperature can produce different results. […]