Welcome to my website.  I began working in clay in 1981, and have worked in high-fired porcelain and stoneware since 1988.  The photos on this page represent my principal glazes: Copper Red, Amber, Temoku - a brownish black with light brown highlights, and Wood Ash Celedon.   

handle red.psd

All of my glazes will vary from piece to piece. The Copper Red, however, is far more unpredictable than the others. These two photos illustrate a couple possibilities. Although temperature can effect the color, the kiln atmosphere during the firing is the principal cause of color variation. Kiln atmosphere in a fuel burning kiln - I use propane - is controlled by

handle ox red 2.psd

limiting the amount of oxygen available. There are a number of ways of accomplishing this, but in my case I use a damper in the chimney, just as you would in a woodstove.  Restricting the amount of oxygen causes a "Reduction" atmosphere, and this is what causes the copper to turn red. (Copper in its oxidized state is green.) The lower photo shows the results of just a bit more oxygen than the upper photo.           

It is not possible to predict the exact results.