Came across this recipe a while ago - I think on the Electric Brew Company site - cannae blasted remember!
Anyway, took the recipe and trebled everything. Looking for a FV around 60 litres
Just over 15 KG of grain
Definitely found the upper limit for the mash tun
and the boiler!
Currently doing a longer boil to get the volume down to one the fermenter can handle - and even then decided that the addition of a blow-off tube would probably be wise!
Still waiting on the boiler volume getting low enough.....