tipton on fri 7 nov 03
Hello, I am a small time, geographically isolated production ceramic =
artist. Does anyone have a suggestion on how to go about determining if =
a piece is cookware safe? The commercial glazes I use are advertised to =
be safe when used a certain way, but caution to conduct product =
testing. My question: are there consultants who take representative =
pieces and determine what tests to perform, then conduct the analysis. A =
third party analysis could go a long way in helping producers such as =
myself refine a product, then fairly represent them to the buyer.
John Hesselberth on sat 8 nov 03
You haven't told us enough to get a very specific answer.
For example, when you say cookware, do you mean ovenware or stovetop or
'flame' ware. If you mean stovetop or flame ware then you are on your
own--most of us consider the liability issues too high and the
technology too complex to consider making it. I am not aware of anyone
who would test and certify it for you. It is best left to someone like
Corning Glass who have the resources to assure its safety.
Are you using lead or cadmium in your glazes? Then, yes, there are labs
who will test your glazes so you will know whether or not they meet the
release standards set by (in the US) the FDA or California.
If you are talking about ovenware or ware used in a microwave, you are
pretty much on your own although you will find quite a bit of
information on how your might test your pots yourself in Mastering Cone
6 Glazes. The better part of one chapter is devoted to this subject and
the information is relevant no matter what cone you fire to. I'm not
aware of any other book that does any more than say a few words about
If this is not a helpful answer then tell us more about what you are
doing and maybe someone can come closer to the mark.
On Saturday, November 8, 2003, at 01:45 AM, tipton wrote:
> Hello, I am a small time, geographically isolated production ceramic
> artist. Does anyone have a suggestion on how to go about determining
> if a piece is cookware safe? The commercial glazes I use are
> advertised to be safe when used a certain way, but caution to conduct
> product testing. My question: are there consultants who take
> representative pieces and determine what tests to perform, then
> conduct the analysis. A third party analysis could go a long way in
> helping producers such as myself refine a product, then fairly
> represent them to the buyer.
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