#11  
Old 09-12-2009, 03:27 PM
Archena's Avatar
Il Pizzaiolo
 
Join Date: Apr 2007
Location: Alabama
Posts: 1,208
Default Re: Tarracotta Flower Pot Oven -- using two flower pots

How about trying it small scale first? Get a cheap, small pot, fix it and see if it will bake a muffin.

Alton Brown made a smoker from two terra cotta pots so it might just work.
__________________
"He is no fool who gives what he cannot keep to gain what he cannot lose." - Jim Elliot

"Success isn't permanent and failure isn't fatal." -Mike Ditka
[/CENTER]
Reply With Quote
  #12  
Old 09-12-2009, 06:10 PM
Les's Avatar
Les Les is offline
Il Pizzaiolo
 
Join Date: Sep 2005
Location: Carson City, NV
Posts: 2,832
Default Re: Tarracotta Flower Pot Oven -- using two flower pots

Quote:
Originally Posted by Archena View Post
How about trying it small scale first? Get a cheap, small pot, fix it and see if it will bake a muffin.

Alton Brown made a smoker from two terra cotta pots so it might just work.
Talk about baby steps - a muffin, that cracks me up (great idea though). Which brings me to topic - I agree with David, the terra cotta we have in the states are way to thin to be subjected to repeated heat that your oven will see. I would also be cautious where it came from - some countries don't give a damn what materials they throw into it. I can see it working as a smoker because mine runs around 180 deg F - not even close to the temps you will see firing it to what your pizza wants.

JMO,

Les...
__________________
Check out my pictures here:

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


If at first you don't succeed... Skydiving isn't for you.

Last edited by Les; 09-12-2009 at 06:14 PM.
Reply With Quote
  #13  
Old 09-12-2009, 06:29 PM
Archena's Avatar
Il Pizzaiolo
 
Join Date: Apr 2007
Location: Alabama
Posts: 1,208
Default Re: Tarracotta Flower Pot Oven -- using two flower pots

I can't take credit for the muffin idea. I'd read it from a guy who made several to try different mixes of cob.
__________________
"He is no fool who gives what he cannot keep to gain what he cannot lose." - Jim Elliot

"Success isn't permanent and failure isn't fatal." -Mike Ditka
[/CENTER]
Reply With Quote
  #14  
Old 09-13-2009, 01:08 AM
Serf
 
Join Date: Jul 2009
Location: Australia
Posts: 11
Default Re: Tarracotta Flower Pot Oven -- using two flower pots

I've built my terracotta pot oven and am currently curing it. The one drawback so far is that because I layered a terracotta clay and perlite mix around the pot the mix shrinks over the underlying pot shape so cracks form in places which you need to render and fill with fresh mix.

You always get shrinkage with clay I gather of some 12 or 15 percent depending whether it's green ware or whatever -- so when you are covering a large area this is going to happen as the coating dries. This is why , I assume, layering clay inside a tandoori shape is less problematical.

Quote:
[My original idea was to layer the clay mix inside the oven while the pot was upright and then invert it for baking on a flat hearth of bricks. But to make that worthwhile you really do need a large pot and two sets of hands to upturn the pot layered with clay-insulation mix.]
But the design concept seems to work..so far. When I start baking I'll let you know.I have had a few big fires in the oven without any problems with the original clay pot. (If the pot does crack -- well then the dome remains as it in effect served me as form work).

The other advantage , which I'm adapting, is that when you cut your door shape in the pot -- the first thing I did by using a file(easy it was too)-- you get a customized door. All I need to do is add a handle and push the cut out section into the door jam to lock in heat.

Now if you were really taken with this notion, I expect you could cut yourself a door in a large pot and bury it in an embankment and try to harness the ground's thermal mass.(Or cover it with stones so long as they don't explode!) Your standard mud brick oven is really that...So if you wanted a quick oven, considering how the Maori create a hangi because with have-pot-will-travel --there's a quick and portable one right there. Lighter than a dutch oven too!

You could go bush baking with your terracotta pot and I guess even bury smaller pots in the campfire coals!
Quote:
Just one further note on terracotta -- and I use it for sculpting occasionally -- the much admired Moroccan tagine pot with its unique conical lid is more correctly used on top of the fire/heat source rather than inside an oven. So you are applying direct heat to the terracotta base and using the terracotta conical roof to transfer heat throughout your casserole. But check out a tagine design and thinness and ponder the possibilities of terracotta... but reemmber with tagine on top of the stove you soak then m in water first.
dave riley

Last edited by ratbagradio; 09-13-2009 at 01:11 AM.
Reply With Quote
  #15  
Old 09-13-2009, 06:43 AM
Il Pizzaiolo
 
Join Date: Mar 2009
Location: USA
Posts: 1,436
Default Re: Tarracotta Flower Pot Oven -- using two flower pots

David R,

Very intersting concept,, Hope it works out as Im really curious and would love to build a 2nd, little oven like you describe just to try it,,, Maybe the alton brown model

Mark
Reply With Quote
  #16  
Old 09-13-2009, 06:59 AM
christo's Avatar
Master Builder
 
Join Date: Feb 2006
Location: Eastern NC
Posts: 910
Default Re: Tarracotta Flower Pot Oven -- using two flower pots

could you make pieces from clay, dry them and fire them in the brick oven?

i got my oven hot enough to melt wine bottles. would that be enough to shrink and provide some level of firing?

christo
__________________
My oven progress -

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Last edited by christo; 09-13-2009 at 07:01 AM.
Reply With Quote
  #17  
Old 09-14-2009, 04:08 AM
Il Pizzaiolo
 
Join Date: Mar 2009
Location: USA
Posts: 1,436
Default Re: Tarracotta Flower Pot Oven -- using two flower pots

Hey Christo,,,,

Did you melt the wine bottles on purpose ??? or were they just tooo close, ???

Mark
Reply With Quote
  #18  
Old 09-14-2009, 04:37 AM
david s's Avatar
Il Pizzaiolo
 
Join Date: Mar 2007
Location: Townsville, Nth Queensland,Australia
Posts: 4,701
Default Re: Tarracotta Flower Pot Oven -- using two flower pots

Clay undergoes the irreversible change at 573 C so that it won't return to mud if water is added. Glass usually melts at around 900C but every glass is different, artists who do glass slumping test each glass they use. Some even have a plastic content which makes them melt at an even lower temp.
Reply With Quote
Reply

Tags
clay, oven. terracotta

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Why Italian Wood-Fired Ovens are Round james Newbie Forum 50 04-01-2014 09:14 PM
Scotch Oven story Yahoo-Archive Getting Started 2 01-31-2012 04:44 AM
"No Turn" oven, Let's try a commercial size.. Fourlix Introductions 1 06-28-2008 06:15 PM
Neapolitana Style Oven (31.5") southpaw Pompeii Oven Construction 4 08-11-2007 06:29 AM
Why we did the Pompeii Oven james Introductions 0 03-21-2005 03:48 AM


All times are GMT -7. The time now is 02:39 AM.

Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
2006/10 Forno Bravo, LLC