Raku Crackle Effects

I discovered this YouTube video demonstrating the crackle Raku post firing technique. This gentleman seems to have it down perfectly. In this video the pottery is removed from the kiln and allowed to evenly cool prior to reducing in a trash can. The clay is shrinking faster than the glaze/glass on the surface. This cooling action causes the uniformed “crackle” patterns which are then blackened by the smoking fire. Click on the image and enjoy!