Author Topic: Parti-gyle or not?  (Read 1424 times)

Offline David

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Parti-gyle or not?
« on: September 04, 2017, 07:44:21 PM »
Brewing an American IPA today, 17 pounds of grain 5 gallon batch. I think that this may be a good opportunity to make a second brew (parti-gyle). How would be the best way to determine the amount of hops to add for the second? This was totally unplanned,  I believe I will have sufficient pre boil gravity on the second runnings as I do not require a large amount of sparge water on the first batch.

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Offline BrewBama

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Parti-gyle or not?
« Reply #1 on: September 04, 2017, 09:35:31 PM »
"Often the second wort was even boiled with the hops from the first batch."

https://www.morebeer.com/brewingtechniques/library/backissues/issue2.2/mosher.html


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« Last Edit: September 05, 2017, 01:16:30 AM by BrewBama »
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Offline David

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Re: Parti-gyle or not?
« Reply #2 on: September 04, 2017, 09:37:49 PM »
https://www.morebeer.com/brewingtechniques/library/backissues/issue2.2/mosher.html


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I read through that, it does not mention how to calculate for hops. Just gravity of the different runnings

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Offline brewinhard

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Re: Parti-gyle or not?
« Reply #3 on: September 04, 2017, 11:15:30 PM »
https://www.morebeer.com/brewingtechniques/library/backissues/issue2.2/mosher.html


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I read through that, it does not mention how to calculate for hops. Just gravity of the different runnings

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You may have to operate on the fly a bit for this to work. Once you have collected your second runnings into the kettle and got your boil going for a couple minutes to eliminate any stratification of your wort, you will have to take a gravity reading (either with a hydrometer or refractometer) to get a rough estimate as to a pre-boil gravity. Then plug that into some brewing software and add your hops alpha acids to calculate a potential bitterness value.