Would you be talking about plates, spoons and such, when saying, "kitchenware"?
Because I don't see something like a wok having a heavy metal being sealed behind something else, since the surface needs to be some metal anyway and I don't know of any transparent metals.

On another note, I recently got gifted a melamine crockery set, by the company. And since this is a product that could easily be problematic if the manufacturing process were not perfect (and I don't see the company not cheaping out), I only use the stuff for keeping peels and other waste, before throwing it out.

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