Clay and Materials

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paul

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Feb 13, 2009, 10:57:25 AM2/13/09
to Seattle Hornos
I would like to start on my cob oven this spring so I'm starting to
gather materials. Does anyone have a good suggestion for where to get
the clay? Also a line on some free fire brick would be great.

Thanks,
Paul

Christopher Gronbeck

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Feb 13, 2009, 12:03:38 PM2/13/09
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>I would like to start on my cob oven this spring so I'm starting to
>gather materials. Does anyone have a good suggestion for where to get
>the clay? Also a line on some free fire brick would be great.

We just used free dirt with a high clay content. We responded to ads
on Craigslist, and asked people offering dirt if they knew if it had
high clay or not, then if it sounded promising (or if they didn't
know), we'd go check it out.

Free fire brick is probably harder...we were lucky to have friends
who had recently relined their fireplace and had some left over.

Good luck!

Christopher

--
Christopher Gronbeck 206-925-9290
Sustainable By Design fax: 877-684-0797
3631 Bagley Ave. N chris...@susdesign.com
Seattle, WA 98103 USA www.susdesign.com

Dan Hoffman

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Feb 15, 2009, 10:46:41 AM2/15/09
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I wish that I could send you a large batch of the Georgia clay mud. I
am sure that itd would build a great cob oven. We are so exicited
about your new oven and can hardly waite to teast some of your great
pizzas from the new oven.
Mom & Dad

paul

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Feb 17, 2009, 11:57:15 AM2/17/09
to Seattle Hornos
Thanks Christopher. Did you test for clay using the techniques talked
about in "Build Your Own Earth Oven" and was this pretty easy? I have
a friend that lives in Redmond and says his soil is pretty high in
clay so I though I would try the techniques laid out in the book.

On Feb 13, 9:03 am, Christopher Gronbeck <christop...@susdesign.com>
wrote:
> 3631 Bagley Ave. N          christop...@susdesign.com

Christopher Gronbeck

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Feb 17, 2009, 8:00:22 PM2/17/09
to seattle...@googlegroups.com

>Thanks Christopher. Did you test for clay using the techniques talked
>about in "Build Your Own Earth Oven" and was this pretty easy? I have
>a friend that lives in Redmond and says his soil is pretty high in
>clay so I though I would try the techniques laid out in the book.

Hi, Paul! Yes...we did something like what was described in that
book, and it seems to have worked well. It's pretty easy to tell
when you have a handful of wet clay because of its malleability (if
you can roll it into worms, you're in good shape).

For the final plaster, I had a potter friend with leftover 100% clay,
so we augmented the soil with that and mixed it with horse manure and
dryer lint for fiber, and that worked really well (except that there
must have been some undigested grain in the manure, because during
the first summer, the oven grew sprouts on it and looked like a Chia
pet :)

Christopher

--
Christopher Gronbeck 206-925-9290
Sustainable By Design fax: 877-684-0797

3631 Bagley Ave. N chris...@susdesign.com

Steven Vannoy

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Feb 17, 2009, 8:25:53 PM2/17/09
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I guess it is time to start saving up dryer lint and horse manure!

paul

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Feb 18, 2009, 10:47:20 AM2/18/09
to Seattle Hornos
LOL holy shit that's great!!

Do you have any pictures to share of El Horno in the chia pet stage?

Paul

On Feb 17, 5:00 pm, Christopher Gronbeck <christop...@susdesign.com>
wrote:
> 3631 Bagley Ave. N          christop...@susdesign.com

Christopher Gronbeck

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Feb 18, 2009, 2:34:14 PM2/18/09
to seattle...@googlegroups.com

>Do you have any pictures to share of El Horno in the chia pet stage?

I looked, and can't find any. Too bad...it was pretty funny. After
they all sprouted the first season, they never came back.

Also: March 7th pizza party at Chateau Bagley, Wallingford
neighborhood, Seattle. Details coming soon.

Christopher

--
Christopher Gronbeck 206-925-9290
Sustainable By Design fax: 877-684-0797

3631 Bagley Ave. N chris...@susdesign.com

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