I buy hops, grain, star san and pbw in bulk. Yeast if free from a couple of local brewpubs. Average cost right now is about $8 per lb of hops, $21 per 50lb sack of 2-row, 1 gallon of star san is $32.50, and a 50 lb pail of pbw is $125. A 10 gallon batch costs around $12 for me to make. The...