Finished stoneware pottery after being fired up to 2385 degrees Fahrenheit in a reduction atmosphere inside of the kiln. One must have a good understanding how to stack and load a kiln prior to the firing of the kiln in order to be successful. Due to the weight of the pottery and the kiln shelves, plus the movement of loading/rolling and unloading/unrolling of this car kiln on must have experience to do it correctly, or suffer the consequences of a disaster. We have been doing this for just over 50 years……