Grainfather G30 - excessive boil off?
I've had my Grainfather for some time, maybe done 4-5 brew sessions. One thing I've noticed is that I've never hit the batch size so far, I'm not even close. I have the 220V unit.
From yesterdays session of a 23L batch I got about 19L in the fermenter.
Since I'm quite new to this, I'm not sure what I can do in case I'm off this much. So far I've just I just let it be, so I'll have a stronger beer in the end.
One thing I've seen in hindsight from yesterday is that even my pre-boil volume was off. If that happens, do I just add water, or do I put the grain basket back and sparge until desired volume?