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mskbeerfan
Joined: 26 May 2011 Posts: 11 Location: Enola PA
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Link Posted: Wed May 10, 2017 6:21 pm Post subject: Poor Post Boil Volume |
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Greetings, it's good to be back on the board and brewing again after taking some time away from the hobby.
I brewed a batch last weekend and Kal I am curious as to what others using your system / clones have shared with regards to boil off.
I planned a 6 gallon batch using Beer-smith.
I collected 8 gallons of Wort and began a 60 minute vigorous boil.
I ended my boil with approx 6 gallons in the kettle and due to waste ended up with just less than 5 gallons in my fermenter.
Yes, my SG ratings were higher than expected.
2 gallons in an hour is just nuts, thinking of doing a 30 minute IPA and testing to see how it effects the hops.
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dp Brewing Company
Joined: 08 Jul 2013 Posts: 664 Location: Midwest
Drinking: Chocolate Taco, Raspberry Mango Cider, American X, Sandy Dunes
Working on: Nothing
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Link Posted: Wed May 10, 2017 6:35 pm Post subject: |
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A lot of the guys on here have a boil rate of 1.9/hr. Yours lines up pretty close.
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Ozarks Mountain Brew
Joined: 22 May 2013 Posts: 737 Location: The Ozark Mountains of Missouri
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Link Posted: Wed May 10, 2017 6:44 pm Post subject: |
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just back off the heat to the boil and you'll be fine, I run mine on 100% for a few minutes but started backing down as far as I can go just to save the evaporation, beers tasted the same
_________________ "Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world."
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kal Forum Administrator
Joined: 12 Dec 2010 Posts: 11121 Location: Ottawa, Canada
Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter
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dp Brewing Company
Joined: 08 Jul 2013 Posts: 664 Location: Midwest
Drinking: Chocolate Taco, Raspberry Mango Cider, American X, Sandy Dunes
Working on: Nothing
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Link Posted: Wed May 10, 2017 6:46 pm Post subject: |
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Ozarks Mountain Brew wrote: | just back off the heat to the boil and you'll be fine, I run mine on 100% for a few minutes but started backing down as far as I can go just to save the evaporation, beers tasted the same |
Same here, I back mine down to about 70% to keep the boil going.
_________________ Visit dp Brewing Company
Hangovers hurt....but good memories last forever!
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mskbeerfan
Joined: 26 May 2011 Posts: 11 Location: Enola PA
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Link Posted: Wed May 10, 2017 7:03 pm Post subject: |
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Great to know, and thank you for sharing.
I have always kept the temp programmed at 212 / 213 to keep a rigors boil going but will try backing it off just a bit.
Thx,
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kal Forum Administrator
Joined: 12 Dec 2010 Posts: 11121 Location: Ottawa, Canada
Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter
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wscottcross
Joined: 03 Jul 2015 Posts: 212 Location: CT
Drinking: Launch IPA, Double Sunshine clone, Maple Coffee breakfast stout
Working on: expanding my beer horizons (and my beltline)
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Link Posted: Fri May 12, 2017 11:01 am Post subject: |
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Just keep in mind that those duty cycles are for the 20 gallon Blichmann kettles. Different sizes and maybe even different manufacturers will require different duty cycle settings. Best to experiment and see what the ideal setting is for your particular equipment.
_________________ Kal clone controller, 30 gallon Spike Brewing kettles, 6 tap keezer
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dp Brewing Company
Joined: 08 Jul 2013 Posts: 664 Location: Midwest
Drinking: Chocolate Taco, Raspberry Mango Cider, American X, Sandy Dunes
Working on: Nothing
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Link Posted: Fri May 12, 2017 12:28 pm Post subject: |
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wscottcross wrote: | Just keep in mind that those duty cycles are for the 20 gallon Blichmann kettles. Different sizes and maybe even different manufacturers will require different duty cycle settings. Best to experiment and see what the ideal setting is for your particular equipment. |
Correct and also the amount of wort you are boiling will affect that %. At 7 gallons I'm close to 60%
_________________ Visit dp Brewing Company
Hangovers hurt....but good memories last forever!
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kal Forum Administrator
Joined: 12 Dec 2010 Posts: 11121 Location: Ottawa, Canada
Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter
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Link Posted: Fri May 12, 2017 12:52 pm Post subject: |
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Yup! Not just the kettles, it's dependant on:
- Volume of liquid (kettle size like you say)
- Amount of power in the kettle (watts). Could be 4500W, 5500W, 9000W, 11000W, etc.
- Kettle insulation (if any)
- Kettle diameter (the more exposure, the more boil-off you have)
- Ambient temp, wind, humidity level, etc.
- How vigorous of a boil you want in the first place
Definitely play around and see what works for you. Good luck!
Kal
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