[Clayart] Safety issues with melting glass in functional pots

[ronroy at ca.inter.net]

Hi Robert,

It probably depends on the difference in expansion/contraction between  
the clay and the glass. It's complicated and I would say unpredictable  
without measuring each and then deciding how wide those cracks are.

I would not choose to do that.

RR

Quoting "Robert L. Johnson via Clayart" <clayart at lists.clayartforum.com>:

> Had anyone experienced dangers associated with clear melted glass in mugs,
> bowls, or other food vessels?
>
> I understand that there will be microcracks that could harbor very small
> food and dust particles. That doesn?t worry me. But is there a danger of
> glass chunks falling out and getting swallowed any more than normal glaze
> chunks spalling off?
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Ron Roy
ronroy at ca.inter.net
Web page ronroy.net