In this LIVE “Cracking the Kiln” session, I’m tackling one of the most common questions I hear in studios: “Why did my stain…?” And I’m going to stop you right there—because a stain doesn’t decide the surface. The base glaze does. If your stain looks clean, dull, shifted, washed out, or just inconsistent from firing to firing, the first place I look is the melt and the surface type of the glaze you put it into, not the colorant label on the jar. We break down the real variables that control stain response: temperature range (mid-fire vs high-fire), atmosphere (oxidation vs reduction), application thickness (thin and thick can read like two different colors), and loading (how hard you’re pushing the stain percentage). My goal is to help you diagnose your own results: what the glaze is doing, how the firing and cooling are steering the final read, and how to make changes that actually produce repeatable finishes. If you want consistent stain color, you need to control the system—glaze chemistry, application, and firing—not just swap stains and hope.