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General Homebrew Discussion / Re: updated bjcp style guidelines
« on: May 15, 2012, 10:07:25 AM »
thanks dbarber, guess i am going insane...
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No, you can't substitute pounds for gallons, and also the gravity of the syrup is probably not 1.032, that is probably the potential SG. The way you've got it the gravity dropped when you addded syrupIf the potential SG of the syrup is 1.032, that's per pound in one gallon of water - you can estimate that 1 lbs of syrup is 1/12 of a gallon, based on honey weighing about 12 lbs per gallon. This gives us an estimated gravity of 1.384, which is a bit less than the SG of honey. 4 lbs is about 1/3 gallon, so it becomes:
(6.5*128 +(1/3)*384)/(6.5+.33)=
(832+128)/6.83=
960/6.83=140.6
So you can estimate your OG was 1.141
There's a lot of estimates in there though.
If you know your volume and you know the SG of the dark candi syrup you can figure it out. It's going to be something like:
(Vi*SGi+Vs*SGs)/(Vi+Vs)=SGt
Where V is volume, SG is expressed in points, subscript s is syrup, subscript i is initial, subscript t is total. It will get you close, but it won't be exact because Vi + Vs != Vt