I brew beer at home, a few friends were talking about this as well. A few thoughts, do you brew beer now? If yes, then find some friends practice brewing beer, look at local laws some states now passed a micro-brew law allowing sale of small batch beer. If you do not brew beer, you have 2 options. A) find someone that does brew and offer to invest, you will probably lose money. or B) Support your local micro-brew and know you are supporting your community.
Not where I am putting my money. The market is still too controlled by a small number of major distributors.