Hello all,
I'd like to share a bit of kit I've figured out. I've posted this elsewhere, some might have seen my post
I know that most people just idolise aluminium foil, but I find it a bit wasteful, so I've been looking for alternatives. I've hit on using an .002" thick brass foil that is obtained at hobby shop/outlets, made by K&S Engineering:
[img]http://www2.gpmd.com/image/k/k%2Bsr6005.jpg[/img]
I put the foil over the bowl just like an aluminium foil screen would go, after first heating the brass foil on a stove to cook off any coatings that might have been on the brass. I saw no smoke, although the foil did discolour, but the discolouration didn't surprise me. Please see below pix of the installation of the brass foil:
[img]http://farm7.static.flickr.com/6008/5940219635_963036943a_z.jpg[/img]
[img]http://farm7.static.flickr.com/6005/5940220701_47e9990de6_z.jpg[/img]
[font="verdana, geneva, lucida,"]I used the brass screen on an Egyptian bowl packed with Nakhla DA, two coconaras. At first I couldn't get enough heat (three coals would have done I think). But then I put the windcover over and -BAM!- went off like gangbusters and I had good smoke, good flavor and over an hour sesh.
if you ask me, it's best of both worlds: foil's heat mgmt and small holes to keep ash out, and ease and reusability of the steel screen.
[/font]
[font="verdana, geneva, lucida,"]
[/font]
Someone suggested that this wouldn't be 'airtight' like aluminium foil, and I will address that suggestion by stating that aluminium foil isn't airtight either (unless you're sealing it with silicone or similar).
Keepin' it green,
t.