The authors of this site, John Hesselberth and Ron Roy, have a strong belief that the glazes we potters put on our pots should be both durable in use and attractive. For too many years potters who have written glaze books and articles in magazines have paid attention only to the aesthetics of the glaze and not to suitability for use. The result has been a lot of glazes in the open literature that, while attractive, have one or more faults that make their use on functional pottery highly questionable. We now have two products to address this issue.


The first is the book "Mastering Cone 6 Glazes" first published in 2002. After 6 printings with over 18,000 copies sold, the original color version is now "out of print". However it has just now been republished by Echo Point Books & Media. It is also available as an eBook on the Apple iBooks app. The black and white version will be withdrawn from publication shortly.

More information about the republication of the color version is available here. We are excited to be able to bring it back at a price that is a couple dollars less than we charged for the original.


The second product is the glaze calculation program "GlazeMaster™" which serves not only as a great database for glaze recipes, but also as a tool to help potters design new glazes and analyze or adjust existing ones. It can be downloaded on the site and is now free. 

Both of these products are described in detail on this site and we hope you will enjoy learning about them.

© 2013 John Hesselberth and Ron Roy, all rights reserved.