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Old 11-12-2011, 12:08 AM   #1
Gammon N Beer
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Default Ten Gallon, Keg as a Boil Kettle, 90 Min Boil

Anybody here brew ten gallons using a converted keg and boiling for 90 minutes?

I batch sparge and add my first runnings to the boil kettle. I then use two sparges. I add what I can to the boil kettle so I have 13.5 gallons in the kettle and bring it to the boil.

Using what is left for the total, around2.5 gallons, I add that to a second pot and begin heating to boil. I want to add that close to boiling wort as I can to my brew kettle when room is available.

My hop schedule of course is to begin at 60 of the 90 minute boil. But as I add to the kettle, the rolling boil drops off.

How does one compensate for these factors? I am finding my first hop additions are in the kettle much longer than intended.

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Old 11-12-2011, 12:24 AM   #2
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are you just boiling to increase OG?

Generally I wouldnt have that many runnings for a 90 minute boil... maybe 13-14 gallons

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Old 11-12-2011, 10:57 AM   #3
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Quote:
Originally Posted by jtsims21 View Post
are you just boiling to increase OG?

Generally I wouldnt have that many runnings for a 90 minute boil... maybe 13-14 gallons
Beersmith gives me about 13.5 gallons for a ten gallon, 60 minute boil. When increasing to a 90 minute BS provides 15.24 gallons.
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Old 11-12-2011, 11:17 AM   #4
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I do the cream of 3 crops which is a 90 min boil and start with about 14 gal and I always fill my 2 corney kegs when the whole process is done

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Old 11-12-2011, 02:42 PM   #5
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Quote:
Originally Posted by Gammon N Beer View Post
Beersmith gives me about 13.5 gallons for a ten gallon, 60 minute boil. When increasing to a 90 minute BS provides 15.24 gallons.
wow... you must have a high boil off rate entered into beer smith. Do the volumes come out the same as what it predicts?
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Old 11-12-2011, 03:43 PM   #6
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I make 10 gallon batches. I usually start with 12 gallons for a 60 minute boil, and 13 gallons for a 90 minute boil. I boil off about 1.5 gallons per hour, but I leave some trub in the BK and I have some losses to my CFC and tubing.

I use fermcap in the boil to help prevent boilovers.

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Old 11-12-2011, 06:40 PM   #7
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I can't see why you'd need to start with anything more than 14 gallons. Like Yooper said, use Fermcap to prevent the boilover and you're set.

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