wizardofza
Well-Known Member
All-
The way I'm familiar with calculating gravity is the extract potential expressed in points per gallon multiplied by amount divided by wort volume multiplied by brewhouse efficiency %.
gravity = (potential * amount)/volume * efficiency%
I'm going to use a simplified recipe with only one grain and 75% efficiency :
10 lbs of Pilsner malt with a potential of 1.036
wort volume of 8.97
((36 * 10)/8.97) * 75% = 1.030 gravity
According to Beersmith my pre-boil gravity (this is where I got the 8.97 gallons from) would be 1.038.
I used the above calculations and applied it to an entire recipe I brewed this weekend, and it was 8 points lower than Beersmith's pre-boil gravity. This is what led me to look at Beersmith a bit closer.
What gives? Anyone else ever see this type of discrepancy when using BS?
The way I'm familiar with calculating gravity is the extract potential expressed in points per gallon multiplied by amount divided by wort volume multiplied by brewhouse efficiency %.
gravity = (potential * amount)/volume * efficiency%
I'm going to use a simplified recipe with only one grain and 75% efficiency :
10 lbs of Pilsner malt with a potential of 1.036
wort volume of 8.97
((36 * 10)/8.97) * 75% = 1.030 gravity
According to Beersmith my pre-boil gravity (this is where I got the 8.97 gallons from) would be 1.038.
I used the above calculations and applied it to an entire recipe I brewed this weekend, and it was 8 points lower than Beersmith's pre-boil gravity. This is what led me to look at Beersmith a bit closer.
What gives? Anyone else ever see this type of discrepancy when using BS?
