looking for something new to try...dry ice hash. i'm giving it a go this wknd.
http://www.youtube.com/watch?v=1buSgDNfGFQ
kinda like co2 extraction just w/o the pressure. "Dry ice is pure, solid carbon dioxide (CO2). Dry ice keeps items colder for much longer than traditional “wet ice” because dry ice is extremely cold, -109 degrees F (-78.5° C). Dry ice sublimates into carbon dioxide gas instead of melting, leaving no liquid mess to clean"