I must add (in case my health insurance is watching ) That my brews are getting longer time turnovers. I cant get around to brewing for a while yet but 5 of those 2017 brews will last me until February by the looks of it. The cider maybe years. That is really cool actually because doing mostly 40lt = 2 keg brews the second keg is always the best after conditioning at ambient for a while. Brewing hard neer end of year was successful to plan.864 litres. (Batch size volume) System = 40l maximum brew batch size. I haven't done the math on the consumed product volume probably 80 % net? That would have to be a PB for me. Also how much given away/consumed by others with positive response was a PB.