On 27 Aug 2004 07:31:44 -0700, (J. Del Col)
wrote:

Commercial glazed ceramic ware for table use is fired at high enough
temperature to burn out the lead and other metals. There are lead
test kits available if you are worried that your dinnerware or
flowerpots might be contaminated.

This is not at all true. Lead is volatile and not used in high fire
glazes, but it is used in low fire glazes and other metals such as
copper, cadmium, and cobalt are used in high fire glazes. These
metals, even lead, can be safely used if the glaze is properly
formulated and fired, but unfortunately this is often not the case.

deg