All beer kegs produced for many years are stainless steel. The only aluminum you will find now are some older, european kegs. Spartanburg produces only stainless kegs.
most everything I have read and have been taught by some friendly brewmasters is that the crush is very important. If the crush is too course, your yeild drops dramatically. If it is too fine, the mash bed can become cement-like and a "stuck mash" can result.
Most any method other than a...
There is a site called www.brewpubzone.com that lists, by state, all of the home brew shops and brew pubs. I am not sure how up to date it is, but it is a heck of a list.
MagicMan