OG: 1.050
FG: 1.012
IBU (tinseth): 23
5.0%v
priming: 6gr/lt from recipe but that's too much for a typical CO2 vol of 1.5-2.0% --> 105gr and not 138gr
Note: original recipes requires 23lt boil volume, with hops 25, 20 and 20gr. This gives IBU ~11. Therefore in this version I have added ~1/2 the hops, to get a 23.2 IBU final with a 12lt boil volume
2.839 L/h evaportaion during boil --> half subtracted from boil volume to approximate more precisely