3.23K viewsPottery and Porcelain
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3.23K viewsPottery and Porcelain
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The bottom of a cookie jar made by Los Angeles Pottery has an unsightly dark orange patch both inside and out.

APT Posted new comment February 10, 2021

Thank you both!

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That as well as smoke and just air can have impurities that discolor pottery ! But don`t worry if there are no stains ,, everyone would assume its a reproduction ! The bottom helps to show age !

marthahill Answered question October 4, 2020
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That as well as smoke and just air can have impurities that discolor pottery ! But don`t worry if there are no stains ,, everyone would assume its a reproduction !

marthahill Answered question October 4, 2020
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That as well as smoke and just air can have impurities that discolor pottery ! But don`t worry if there are no stains ,, everyone would assume its a reproduction !

marthahill Answered question October 4, 2020
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Unlike porcelain glazed pottery is not completely fused together – the glaze is one layer, the body another. Both have different physical features, like density, flexibility, etc. and do not age well. Heat and cold (as well as dramatic changes between both) also don’t play well with glazed ceramics.

The result, so-called “craquelure”, is a fine web of cracks in the glaze which allow all kinds of liquids to seep into the body – from plain dishwater or tea/coffee to various forms of cooking spills including blood.

Friedrich Answered question October 3, 2020
APT Posted new comment February 10, 2021

Thank you both!