Hey there,
I've been doing the beer thing for about three years now. Previously I just made up the recipes that they had at the brewing store. All the stuff I've done has been extract or partial mash. Lately I've been reading up on more of the technical aspect of brewing. I moved up to school...
It's a process called "jacking", as in apple jack. If you live in the US then your forefathers used this process during the cold colonial winters. Oddly enough the same guys that wrote the original laws for the country enjoyed the fruits from this natural distilling process.
How I know this is...