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Topic: can you anneal in your toaster over?  (Read 2484 times)
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poe poe
« on: August 09, 2009 11:08:08 AM »

I saw this video on the internet...
http://www.metacafe.com/watch/1398617/flatten_a_bottle_in_your_oven/
Does this really work? could you also use a toaster over to anneal your lampwork beads?
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HeyVern
« Reply #1 on: August 21, 2009 11:26:53 AM »

You have to leave your toaster oven on for 2 days straight?  With the amount of money wasted on electricity you use in one "firing" of the toaster over, you could buy a small kiln.
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poe poe
« Reply #2 on: August 21, 2009 11:58:09 AM »

wouldn't a kiln suck an obscene amount of energy as well? I don't even have a toaster oven, I was just wondering if it was possible.
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HeyVern
« Reply #3 on: August 29, 2009 10:03:45 AM »

It depends on how long you use your kiln.  I have mine on for 41 minutes on an average firing. Some people fire for hours and hours.

The electric kiln I have is for a 110v outlet, not a 240 like the gigantic ones.
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« Reply #4 on: March 14, 2012 01:12:48 PM »

that does not sound safe at all!  Huh
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robylwood
« Reply #5 on: July 02, 2013 01:05:42 PM »

where is the best place to purchase a used Kiln?
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« Reply #6 on: July 04, 2013 04:17:41 AM »

Craigslist is a good one, or check your local newspaper. Smiley
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« Reply #7 on: July 04, 2013 08:08:13 AM »

About buying a used kiln, make sure that you buy the right type of kiln for whatever you're planning to do. A ceramics kiln typically has elements on the side, while a glass kiln typically has elements on the top, although there are multimedia kilns. Be sure that the kiln has not been used to fire PMC if you plan to fire glass. Firing PMC in a kiln causes the fumes from the PMC to penetrate the fire bricks and subsequent firing releases those fumes which can then pollute your glass and cause problems. In addition to Craigslist, contact local glass shops, art studios, schools, etc., and ask about used kilns. It's surprising what a little networking can do!

About that video above, note first and foremost that the person who made this video does not recommend doing this at home. If the glass is not cleaned in advance, or labels are not removed, you could have a fire in the toaster oven--bad news. I'm pretty certain too that this video is fake. The first link at the end of the video takes you to a website that says "you think it, we shoot it" and is filled with misspellings and broken links. The other link is to a site that doesn't exist if you spell it the way they spell it. If you correct the spelling to americanpridebottleart.com, the site you go to is in Chinese. *And* glass simply does not melt at 500 degrees. I strongly advise against trying this at all.
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« Reply #8 on: September 29, 2013 10:53:25 AM »

In short, no, you can not anneal in a toaster oven. For one thing, a toaster oven doesn't get anywhere near hot enough. Borosilicate glass has to have an average hold temperature of 1100. Soda lime glass needs an average hold temperature of 920. Then there are complex annealing schedules where it cools a little at a very slow pace, then holds for a while, then cools some more, then holds again.

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steiconi
« Reply #9 on: October 15, 2013 05:04:26 PM »

Just to play devil's advocate, you might be able to convert a toaster oven to an annealer--I've seen annealers made from mail boxes.  But an off-the-counter toaster oven wouldn't do the trick.  And if you tried, I wouldn't recommend eating anything cooked in it later; glass is sometimes colored with nasty chemicals.  I use a separate toaster oven for polymer clay for the same reason.
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