For brew calculations and really digging into how the magic that is beer works I would suggest reading "Designing Great Beers" by Ray Daniels. I've found that I am really starting to understand what makes up the beer I'm brewing.
He does a great job explaining how much of each fermentable you will need to hit the OG you want. The formula is:
OG=(GU*%GB)
(PG-1)*1000
BHE
Where
OG=Original gravity
GU=Gravity Units of beer (Batch size * (target gravity-1))
%GB= Percent the grain makes up of your total bill
PG= Potential gravity of grain (varies from malt to malt)
BHE= Brew house efficiency (varies from brewer to brewer)
I'd really recommend this book. I think I really am beginning to understand how to brew better beer by reading it.
He does a great job explaining how much of each fermentable you will need to hit the OG you want. The formula is:
OG=(GU*%GB)
(PG-1)*1000
BHE
Where
OG=Original gravity
GU=Gravity Units of beer (Batch size * (target gravity-1))
%GB= Percent the grain makes up of your total bill
PG= Potential gravity of grain (varies from malt to malt)
BHE= Brew house efficiency (varies from brewer to brewer)
I'd really recommend this book. I think I really am beginning to understand how to brew better beer by reading it.