Higher yield

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Higher yield

Postby Sully11 » Wed Apr 15, 2015 1:55 pm

I have a 7.5 gallon kettle, which makes brewing anything more than 4 gallons a real challenge. By the time I take readings for OG/FG and siphon off all the gunk, I'm left with about 3 gallons of actual beer. My mash tun is able to hold enough grain/water for a 5 gallon batch. Is it possible to mash/boil 3.5 gallons and then add water prior to pitching to bring the yield up to 5ish gallons and still hit a target OG?
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Re: Higher yield

Postby czubak » Wed Apr 15, 2015 2:23 pm

Overshoot your gravity and top off with water. Or just get a 10 gallon kettle

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Re: Higher yield

Postby andrewmaixner » Thu Apr 16, 2015 7:29 am

Sully11 wrote: Is it possible to mash/boil 3.5 gallons and then add water prior to pitching to bring the yield up to 5ish gallons and still hit a target OG?

Yes. That's how extract brewers often do it intentionally. BeerSmith or some other calculator will easily help you adjust for your lower hop utilization from the higher boil gravity.
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Re: Higher yield

Postby Steven P » Thu Apr 16, 2015 9:50 am

I boil 5 gallon batches in my 7.5 gal kettle. Use fermcap.
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Re: Higher yield

Postby Sully11 » Thu Apr 16, 2015 1:03 pm

I tried something in the past...a defoamer or something like that, but it didn't really work. Does fermcap work better?
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Re: Higher yield

Postby Matt F » Thu Apr 16, 2015 1:27 pm

Seems like you should be able to do a full boil in 7.5 Gallons. I do 10 gallons in my 14 gallon kettle and I leave 1 gallon behind. I start with 13 gallons. Have to keep a close eye on it not to boil over. You don't have to have a crazy boil either. I nice rolling boil is all it takes.
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Re: Higher yield

Postby whitedj » Thu Apr 16, 2015 3:56 pm

Or let trub settle in a spare bucket and syphon for 1 to another bucket. I think lee tried filtering pre-fermentation with success too.
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Re: Higher yield

Postby Matt F » Thu Apr 16, 2015 10:39 pm

After I whirlpool and chill I let the boil kettle set for nearly an hour and then drain off to the carboy slowly. My last three beers have been extremely clear. The beer tastes cleaner and more refined. The last one was 1.048 OG and almost Dr. Lee clear. 6.75 oz. of hops in the kettle and another 4 oz. to come for dry hopping. More if needed.
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