The two glazes I used on this are C.W. Plumb and C. W. Cream (Ceramics Monthly) measured and mixed by our tireless pottery workshop teacher, John. So far that glaze has not ceased to amaze me. Two people can use these same two glazes on similar bisqued pots and get very different results. Glaze thickness has everything to do with it. The thicker the better in most cases, although one must not overdue it since blisters may develop. But I think it's worth the risk.