Mrmalty says 4 liters with both vials, using only one vial I would need 12 litres!
Even if I step this up I am getting the feeling one isnt enough so ATM im planning on a 2L starter with both vials. (I have them right?) and then a step tomorrow to 4L
Unless someone tells me I'm completely crazy...
Also conceived pitching one vial into started and then adding second at step up or at pitching. Not sure if this would work either.
Please forgive the noobness, just slightly outside my comfort zone