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Old 06-23-2005, 05:42 PM   #1
Dark_Ale
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Default 2 Row

How much 2 row would it take to bring one gallon of water to 1.060 if your techniques and temps were good?


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Old 06-23-2005, 06:03 PM   #2
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Quote:
Originally Posted by Dark_Ale
How much 2 row would it take to bring one gallon of water to 1.060 if your techniques and temps were good?

If I did it right in Promash, I'm coming up with 2.4 lbs. of pale 2-row malt (1.036).
I'm not sure I totally understand what you are asking, but.....


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Old 06-26-2005, 03:13 AM   #3
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Default That dirty OG

I am interested in the same thing. I have been AG for a few years now and am starting to try to "predict" what will occure when I brew. I have looked and looked for an answer to this question and still have not found the promised land. Someone please help!

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Old 06-26-2005, 04:51 AM   #4
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Here, mess around with this: http://hbd.org/cgi-bin/recipator/recipator
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Old 06-27-2005, 02:22 PM   #5
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You savior has a name, and it's name is Promash. There are free programs that can do what you want out there, but none of them will be as complete and easy to use as Promash. No, I don't own the company, just a delighted customer.

To answer your original question, each type of grain has a potential gravity associated with it. For standard American 2 row, it's 1.036. That means, if you grind it to flour, mash and convert completely, 1 pound of grain will yeild 1 gallon of wort at a gravity of 1.036. That's assuming you are 100% efficient, which is why it's called "potential". Every system will have a reduction in the actual gravity you get due to the efficiency factor.

To do the calculations yourself, use the following formula:

WG = (Lbs x PPG x Eff)/WV

WG = Predicted Wort Gravity in points like 45 or 50 or 60
Lbs = Pounds of grain used
PPG = Gravity potential of the grain (points per pound per gallon, i.e. 36 or 38 for typical base malt)
WV = Wort Volume in gallons
Eff = Your system efficiency

Example
If you want a wort gravity of 1.060 in 1 gallon of water, and we'll assume 70% efficiency and a PPG of 36 for the grain, then your equation looks like this:

WG = 60
PPG = 36
WV = 1
Eff = 0.7

Solve for Lbs

Lbs = (60 x 1)/(36 x 0.7)

Lbs = 2.38 lbs

It's much easier for Promash to figure this for you, but an understanding of the math is good.

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