Steam Oven - another one
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A German gal is testing the new Sharp AX-111 http://kochtopf.twoday.net/
Alas, on reading the specs, seems only to steam up to 100 degree Celcius (212F).
http://www.sharp.de/cps/rde/xchg/de/hs.xsl/-/html/smarte-kueche.htm