A few weeks ago, when the rain finally stopped, Niko and I embarked on a project: construction of an earthen bread oven in our backyard. Remarkably, progess is being made! We built a stand for it, including making a concrete slab table, then put down brick for the oven floor. Next came the sand form, which is now encased in the three- or four-inch thick "thermal layer" of clay and sand. Once that hardens, we'll cut out a door space, remove the sand, and then put on a thick (seven inches) layer of cob, a mixture of clay, sand and straw. Here's how things look now:
![](http://photos1.blogger.com/blogger/4818/98/320/niko%20and%20thermal%20layer.jpg)
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