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Kuro Raku Tea Bowl

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#121 PietroParis

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Posted 31 August 2019 - 05:28 PM

The bowl really does look great, but isn't there a health concern from the lead in the black raku glaze? I am not sure that I would want to drink from it...

 

Cheers, Pietro



#122 TETSUGENDO

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Posted 31 August 2019 - 06:48 PM

Pietro,

 

There have been lead concerns, but proper use and handling minimizes them.      Pre soak bowl, rinse thoroughly afterwards, use only with Matcha and other non-acidic foodstuffs, and most importantly consume the contents in a timely manner....DO NOT LET THEM SIT IN THE BOWL FOR A PROLONGED PERIOD OF TIME.      If one is still concerned choose another teaware that doesn't have this issue.

 

-S-


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StevenK


#123 PietroParis

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Posted 31 August 2019 - 07:16 PM

Thanks for the tips! Personally I think that I would stick to the last one... ;-)

Concerning the “leaded” bowls, should older ones (where the glaze might be worn or crackled) be considered riskier than newer ones?

Cheers, Pietro

#124 ROKUJURO

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Posted 31 August 2019 - 07:54 PM

No, Pietro,

these glazes will be partly soluble in any weak acid, but older bowls might have lost already some of the lead. On the other side, they show a more 'open' surface which may make them as critical as new ones.

By the way, modern earthenware glazes can be made with low temperature frits without lead, but I don't know if Japanese potters have changed their recipes. But on the other hand many low temperature (lead-free) glazes will be attacked by acids as well. I tried that with orange juice - tastes disgustingly!  

Any stoneware CHAWAN bears no risk at all, so why not go the safe way?   


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Regards,

Jean C.

#125 PietroParis

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Posted 31 August 2019 - 08:31 PM

Indeed, this is “the last tip” I was referring to. I guess I’ll just look for a different kind of bowl! Cheers, Pietro
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