Tiki Central / Tiki Drinks and Food / Backyard Imu
Post #388516 by Limbo Lizard on Sat, Jun 21, 2008 9:03 AM
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Limbo Lizard
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Sat, Jun 21, 2008 9:03 AM
Hot Rock Cuisine Seriously, though... The concrete pipe does the job of holding heat, but you can't (or, shouldn't) heat it too hot, or it will pop and chip and flake, or just crack. That's because water is part of the structure of concrete; it's trapped in an almost crystalline structure with the cement. High heat drives it out, causing some decomposition of the concrete - sometimes almost explosively. The concrete pipe, with those baskets, is so nifty a method, though, that it's worth it, even if it "burns out" after several years. But you wouldn't want concrete over the fire, where it would get the full intensity. Now, if you wanted to build one that could get extremely hot: [ Edited by: Limbo Lizard 2008-06-21 09:18 ] |