Parti-gyle questions - Home Brew Forums

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01-08-2008, 01:00 AM   #1
left field brewer
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Jul 2007
Lansing, MI
Posts: 85
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I am planning on making two beers out of one mash but want them both to be a full 5.5G. The first will be a double IPA on the weaker side(about 1.080-5) and the second will be a blond/pale ale(depending on grain bill). Does anyone have a guess what percent of the total sugars will be able to be sparged off through multiple batch sparges?Should I assume that I'll leave about 5% in the mash....or more? I was also wondering if the easiest way to attain proposed gravities is mathematically or just sparge it all out in separate vessels and then combine to get right gravities? I guess I don't want to spend time figuring the math and then have the end result be off several points. Has figuring it worked well for anyone?

01-08-2008, 01:51 AM   #2
david_42

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Oct 2005
Oak Grove, Oregon, USA
Posts: 25,599
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With first runnings and two sparges (all equal volumes), my numbers work out 50%, 33%, 16%. If I was doing this, I'd split the sparge water into three batches. First runnings and first sparge in the IPA.
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01-08-2008, 02:01 AM   #3
Brewsmith

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Aug 2005
Torrance, CA
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I recently did a similar brew but with three beers. Your first runnings are going to be high. Here's the thread, check out the results in post #28.

http://www.homebrewtalk.com/showthre...t=41419&page=3
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01-08-2008, 02:14 AM   #4
Brewsmith

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Aug 2005
Torrance, CA
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I just crunched the numbers on my above post and here's the percentages for each of the 3 worts:

1st Runnings - 62.5%
2nd Runnings - 25%
3rd Runnungs - 12.5%
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Fermenting:#160 Apollo/Calypso Pale Ale
Kegged:#153 Old Helicon Barleywine 2013, #157 Irish Red, #158 Mosaic IPA, #159 Bravo/Delta ESB
Up Next:Brown Porter, American Stout, Imperial Stout
My Recipes
Tuba Sonata

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01-08-2008, 05:50 AM   #5
mew
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Nov 2006
Posts: 851
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Here's a good reference:
http://www.strangebrew.ca/swig/index.html