Is there any exact science to how much DME extract to add for reaching a desired gravity reading?
For example, if I wanted to make 3 gallons of beer with an original gravity of 1.044 how much DME would I have to add?
After doing some research the formula I've adapted for this is:
( x lbs DME x 45 points) / 3 gallons = 44
solve for x...
x = 44 x (3/45)
x = approx. 2.93 lbs.
I know that gravity has to do with multiplying weight x PPG of the extract, but do all DME's have a PPG of 45 and is the above formula going to work for all situations?
Thanks in advance!