Speaking of cost.... maybe another thread soon on this...
I made a spreadsheet totalling Ingredients, Equipment (allocated to batches) and even Electric/gas for each brew.
I then create a £/l price of my normal beer bought from an off-license (In this country you can sell alcohol for on-license consumption or off-license or off-premise consumption, so we have a special shop for booze). Out of interest, most bars are allowed both off and on license sales, but... at bar prices
As of batch 4 when I include equipment, I was £4 up. Not including equipment and the way it should go in the future I had saved myself £104 in 4 batches. Not bad for about 1 hour a weeks work.