On Mar 23, 12:02*am, wrote:
> Hi,
>
> I recently bought an enamel-on-steel kettle to boil water (it is
> covered with black enamel on the inside). *After i used it several
> times, i was cleaning the inside with a paper towel and i saw a lot of
> dark residue left on the paper towel. *Is it normal? *It seems like
> after i cleaned it the traces of that stuff disappeared but after i
> boiled the water again they reappeared. * Should i be concerned that
> the enamel is dissolving into the water? or is it just something from
> the water itself?
>
> Thanks
> Yev

health concern about using glassware or enamelware comes from
components used in making, glazing, or decorating them, such as
pigments, lead, or cadmium. These materials are harmful when taken
into the body, so the risk of them entering food is controlled during
the manufacturing process.

In Canada, glazed ceramics and glassware are regulated and cookware
made of these materials can not be sold, advertised or imported if it
releases more than trace amounts of lead and cadmium. Products having
greater than the allowable levels of lead and cadmium must be
identified by a label indicating the presence of lead and/or cadmium,
or by a design feature such as a hole or a mounting hook, indicating
that they should not be used for food.