Terra Cotta
<dl>
<dt ><b>Ceramics</b></dt>
<dd ><a href="http://en.wikipedia.org/wiki/Ceramic_glaze" title="Ceramic glaze" >Glazed</a> ceramics, such as <a href="http://en.wikipedia.org/wiki/Porcelain" title="Porcelain" >porcelain</a>, provide a nonstick cooking surface. Some unglazed ceramics, such as<a href="http://en.wikipedia.org/wiki/Terra_cotta" title="Terra cotta" class="mw-redirect" >terra cotta</a>, have a porous surface that can hold water or other liquids during the cooking process, adding moisture in the form of steam to the food. Historically some glazes used on <a href="http://en.wikipedia.org/wiki/Ceramic" title="Ceramic" >ceramic</a> articles have contained high levels of <a href="http://en.wikipedia.org/wiki/Lead" title="Lead" >lead</a>, which can possess health risks.</dd>
</dl>
<p> </p>