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Home Brew Forums > Home Brewing Beer > Brew Science > calculating SG of first runnings
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Old 07-22-2010, 07:21 PM   #1
JLem
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Default calculating SG of first runnings

Is there a formula that can be used to calculate (or some way to estimate) the gravity of first runnings?

I ask because I want to attempt no sparge brewing, but I am constrained to a partial boil, which means I am limited in the amount of runoff I can collect, which affects how much I can mash. I'm pretty sure I can figure everything out that I need in terms of grain and water if I only had a way to estimate/calculate the gravity of first runnings.

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Old 07-22-2010, 07:30 PM   #2
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There's actually a chart somewhere on http://braukaiser.com

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Old 07-22-2010, 07:34 PM   #3
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Actually... he has a spreadsheet now that does the work.

http://braukaiser.com/download/batch..._simulator.xls

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Old 07-22-2010, 08:05 PM   #4
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Thanks. I should have figured Kai had something like this. In fact, he's got exactly the chart I was looking for

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Old 07-22-2010, 08:17 PM   #5
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Quote:
Originally Posted by JLem View Post
Thanks. I should have figured Kai had something like this. In fact, he's got exactly the chart I was looking for
Yup.... that's the chart. I was looking for that when I stumbled across the spreadsheet.
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