Someone save me! need to top off - Home Brew Forums

 Home Brew Forums > Someone save me! need to top off

03-27-2010, 07:51 PM   #1
JetSmooth
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Feb 2010
Baltimore, MD
Posts: 1,875
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So, we've had a few beers and math was never my strong suit.

I just completed a boil with a target of 7 gallons at 1.043. I ended up with 5 gallons of 1.045. (not sure what happened, have to do a post-mortem)

I know it's close, but I'd like to get as much volume as I can and hit the gravity. How much CAN I top off to hit 1.043? I don't need to hit 7 gallons, but I'd like to be where I need to be for this recipe.
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03-27-2010, 07:53 PM   #2
david_42

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Oct 2005
Oak Grove, Oregon, USA
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The difference between 1.045 and 1.043 is meaningless.

5*((45/43) -1) ~= one pint
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03-27-2010, 07:56 PM   #3
ajf
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Oct 2005
Long Island
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Another quart water should get you down to 1.043

-a.
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03-27-2010, 10:46 PM   #4
JetSmooth
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Feb 2010
Baltimore, MD
Posts: 1,875
Liked 44 Times on 40 Posts

Yeah. Thanks. I realized the difference was probably miniscule, so I didn't bother.

I wonder why I lost almost three gallons to the process, however. I expected to lose about two.

Oh well, that's just the personality of this system, I guess.
__________________
http://smokebubbles.wordpress.com - Brewin' and 'Quein' since last Tuesday.

Bottling the Belgian: A Photo Odyssey

Beer is the mind-killer. Beer is the little death that brings total obliteration. I will face my beer. I will permit it to pass over me and through me. And when it has gone past I will turn the inner eye to see it's path. When the beer has gone there will be nothing. Only I will remain.

03-28-2010, 04:04 PM   #5
dcp27
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Jan 2010
Medford, MA
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Quote:
 Originally Posted by david_42 The difference between 1.045 and 1.043 is meaningless. 5*((45/43) -1) ~= one pint
It's a huge difference when it's 2 gallons less ... unless of course those 2 gallons were just lost in the process and its really 5gallons at 1.045 and 2 missing gallons at 1.045, then its meaningless.

03-28-2010, 07:51 PM   #6
JetSmooth
Recipes

Feb 2010
Baltimore, MD
Posts: 1,875
Liked 44 Times on 40 Posts

Well, I essentially hit my target OG. But came in two gallons lower than I expected. I'm a little concerned that my hop presence will be much stronger than planned. But we shall see.

I need to figure out where I lost so much volume.
__________________
http://smokebubbles.wordpress.com - Brewin' and 'Quein' since last Tuesday.

Bottling the Belgian: A Photo Odyssey

Beer is the mind-killer. Beer is the little death that brings total obliteration. I will face my beer. I will permit it to pass over me and through me. And when it has gone past I will turn the inner eye to see it's path. When the beer has gone there will be nothing. Only I will remain.